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Which EEG waveform is most commonly seen in the parietal or occipital region and is suppressed by visual and sensory stimuli? | Alpha waves | Beta waves | Delta waves | Theta waves | Alpha waves are a type of brainwave that appear predominantly in a relaxed state and become more pronounced when visual and sensory stimuli are suppressed, such as when closing the eyes or during meditation. Therefore, the EEG waveform that is prominent in the parietal or occipital region and is suppressed by visual an... | Alpha waves are brainwaves that are primarily present in a relaxed state and become more distinct during focused states such as closing the eyes or meditation. They have the characteristic of being suppressed by visual and sensory stimuli, and thus appear less when the eyes are open. Therefore, the EEG waveform that is... | A | Biomedical Engineering | dev | dev/biomedical_engineer_dev.tsv | 0 | 0 |
Which of the following is NOT a nonlinear characteristic of a biometric measuring device? | breakdown | sensitivity drift | dead zone | saturation | Sensitivity drift is not a nonlinear characteristic of a biometric measuring device. Sensitivity drift refers to the change in measured values over time. This is one of the factors that can degrade the accuracy of measuring devices and requires calibration. Saturation refers to the condition where the measurement value... | Sensitivity drift is not a characteristic of nonlinearity in biometric measuring devices. Sensitivity drift means that the sensitivity of the biometric measuring device changes over time. This can occur due to environmental factors such as temperature or humidity. Therefore, the nonlinear characteristics of biometric m... | B | Biomedical Engineering | dev | dev/biomedical_engineer_dev.tsv | 1 | 1 |
What is the phenomenon called where the myocardium contracts and relaxes asynchronously due to the electrical and structural chaos in the heart? | Asynchronous | Electrode | FES | Fibrillation | Fibrillation refers to a state of electrical and structural chaos in the heart, where the myocardium contracts and relaxes asynchronously. This disrupts the normal contraction and relaxation of the heart, impairing its function and potentially leading to cardiac arrest. Therefore, fibrillation is one of the most danger... | The correct answer is 'Fibrillation'. Fibrillation is a phenomenon where the myocardium contracts and relaxes asynchronously due to the electrical and structural chaos in the heart. It occurs due to the heart's own electrical impulses, and typically happens when the heart's normal signal transmission system is disrupte... | D | Biomedical Engineering | dev | dev/biomedical_engineer_dev.tsv | 2 | 2 |
Which of the following descriptions about piezoelectric devices is incorrect? | A device made up of the junction of two different metals that generates electromotive force (EMF) due to the temperature difference between the two ends | A device that deforms when voltage is applied | A device that can measure displacement or pressure changes from electrical potential | A device that generates electrical potential when physical pressure is applied | Piezoelectric devices do not generate electromotive force due to temperature differences, but rather due to pressure or electrical potential. Therefore, the description 'A device made up of the junction of two different metals that generates electromotive force due to the temperature difference between the two ends' is... | The correct description is that a piezoelectric device is not one that generates electromotive force due to temperature differences between two different metals. The described phenomenon is actually thermoelectricity, which involves generating a voltage difference from a temperature difference and is used to measure te... | A | Biomedical Engineering | dev | dev/biomedical_engineer_dev.tsv | 3 | 3 |
Which of the following devices does not use a piezoelectric sensor? | Phonocardiogram device | Ultrasound imaging device | Blood pressure measuring device | Electrocardiograph | Piezoelectric sensors are used to detect pressure, but an electrocardiograph is used to measure the electrical activity of the heart, so it does not use a piezoelectric sensor. | A piezoelectric sensor is a device that detects pressure and converts it into an electrical signal. Therefore, an electrocardiograph, which is used to measure the electrical signals of the heart, does not use a piezoelectric sensor. Ultrasound imaging devices, blood pressure measuring devices, and phonocardiogram devic... | D | Biomedical Engineering | dev | dev/biomedical_engineer_dev.tsv | 4 | 4 |
What is the unit of radioactivity that represents one disintegration per second of a radioactive atom? | Bq | Roentgen (R) | Rad | Ci | The unit of radioactivity in the International System of Units (SI) is the Becquerel (Bq), named in honor of Henri Becquerel, who was a pioneer in the study of radioactivity. A single Becquerel corresponds to the radioactive decay of one atomic nucleus per second. Other units such as the Roentgen (R), Rad, and Curie (C... | The Becquerel (Bq) is the SI derived unit used to measure radioactivity. It is named after Henri Becquerel. One Bq is defined as the activity of a quantity of radioactive material in which one nucleus decays per second. The other units listed, Roentgen (R), Rad, and Curie (Ci), are either outdated or used for different... | A | Clinical Laboratory Science | dev | dev/clinical_laboratory_scientist_dev.tsv | 0 | 5 |
What is the statistical indicator that represents the ratio of the number of deaths due to complications related to pregnancy, childbirth, and the puerperium to the number of live births in a specific year? | Maternal mortality rate | Perinatal mortality rate | Neonatal mortality rate | Maternal mortality ratio | The maternal mortality ratio serves as a crucial metric for evaluating the effectiveness of healthcare systems, with a particular focus on maternal care. It quantifies the incidence of maternal deaths within a specified timeframe, scaled to 100,000 live births occurring within that same timeframe. Utilizing this ratio ... | The maternal mortality ratio is a key health indicator that helps to assess the quality of healthcare systems, particularly in the context of maternal health. It is defined as the number of maternal deaths during a given time period per 100,000 live births during the same time period. This ratio is used to monitor prog... | D | Clinical Laboratory Science | dev | dev/clinical_laboratory_scientist_dev.tsv | 1 | 6 |
Which lipoprotein contains the highest proportion of triglycerides? | LDL | VLDL | chylomicron | IDL | Chylomicrons, which are lipoprotein particles predominantly composed of triglycerides, are synthesized within the intestinal lining following the intake of dietary fats. Their primary function is to facilitate the transport of these dietary lipids from the intestines to various parts of the body. The substantial trigly... | Chylomicrons are lipoprotein particles that consist mainly of triglycerides. They are formed in the intestinal lining from dietary fats and are responsible for the transport of dietary lipids from the intestines to other locations in the body. Chylomicrons have a lower density compared to other lipoproteins due to thei... | C | Clinical Laboratory Science | dev | dev/clinical_laboratory_scientist_dev.tsv | 2 | 7 |
What is the delayed-type (type IV) hypersensitivity reaction mediated by T cells? | erythroblastosis fetalis | myasthenia gravis | anaphylaxis | tuberculin reaction | Type IV hypersensitivity, also known as delayed-type hypersensitivity (DTH), is an immune reaction that is primarily driven by T cells. This reaction is not immediate but develops over a period of hours to days following antigen exposure. In contrast to type I hypersensitivity, which is antibody-mediated and occurs rap... | Delayed-type hypersensitivity (DTH), or type IV hypersensitivity, is a form of immune response that is mediated by T cells and occurs several hours to days after exposure to an antigen. The tuberculin skin test, used to detect exposure to tuberculosis, is a classic example of a DTH reaction, where the injection of a sm... | D | Clinical Laboratory Science | dev | dev/clinical_laboratory_scientist_dev.tsv | 3 | 8 |
Which disease is related to the thyroxine (T4) test using radioactive isotopes? | Pancreatitis | Hepatitis | Hyperparathyroidism | Hyperthyroidism | The radioactive isotope-based thyroxine (T4) test is utilized to evaluate the activity of the thyroid gland by measuring the levels of T4 hormone it secretes. An overactive thyroid, or hyperthyroidism, is characterized by the excessive production of thyroid hormones such as T4. Thus, this test is especially pertinent f... | The thyroxine (T4) test using radioactive isotopes is a diagnostic tool used to assess thyroid function. Thyroxine is a hormone produced by the thyroid gland, and its levels can be indicative of thyroid health. Hyperthyroidism is a condition where the thyroid gland is overactive and produces excessive amounts of thyroi... | D | Clinical Laboratory Science | dev | dev/clinical_laboratory_scientist_dev.tsv | 4 | 9 |
Which of the following statements is not the view of human nature in reality therapy? | Humans have five genetically encoded needs (survival, love and belonging, power, freedom, and fun). | According to the choice theory of reality therapy, humans are born as a blank state motivated by some external force. | Humans act from birth until death, and behavior is emphasized as a result of internal motivation and choice. | If one's behavior is the result of choice, then the individual must take responsibility for the consequences. | The statement that according to the choice theory of reality therapy, humans are born as a blank state motivated by some external force is incorrect. According to the choice theory of reality therapy, humans are born with five genetically encoded needs, and these needs interact with the environment to determine an indi... | Correct Answer: 'According to the choice theory of reality therapy, humans are born as a blank state motivated by some external force.' According to choice theory, humans act from birth until death, and this behavior is the result of internal motivation and choice. Additionally, if one's behavior is the result of choic... | B | Clinical Psychology | dev | dev/clinical_psychologist_dev.tsv | 0 | 10 |
What is the typical personality trait associated with coronary heart disease based on behavioral medicine? | Type A personality | Perfectionism | Optimism | Type C personality | Type A personality is characterized by being competitive, highly stressed, quick in handling tasks, and valuing achievement. Such personality traits can induce stress and are associated with heart disease according to behavioral medicine research. Therefore, the typical personality trait associated with coronary heart ... | Behavioral medicine suggests a strong association between coronary heart disease and Type A personality. Individuals with Type A personality are competitive, highly stressed, and strive to handle tasks quickly and perfectly. These personality traits can induce stress, and if stress persists, it can negatively affect th... | A | Clinical Psychology | dev | dev/clinical_psychologist_dev.tsv | 1 | 11 |
Which of the following is not the unique role of a clinical psychologist? | Psychological assessment | Psychological consultation | Case management | Psychotherapy | The roles of a clinical psychologist primarily focus on psychological assessment, psychotherapy, and psychological consultation. All of these are methods to address psychological issues of patients. However, case management is a method to resolve medical issues of patients, which is less related to the role of a clinic... | The roles of a clinical psychologist mainly include psychological assessment, psychotherapy, and psychological consultation. These are all methods to address psychological issues of patients, understanding their symptoms and problems, providing appropriate assessments and treatments, and offering consultation when nece... | C | Clinical Psychology | dev | dev/clinical_psychologist_dev.tsv | 2 | 12 |
Which of the following is least related to the potential problems of behavioral observation? | Situational factors | Possibility of observer intervention | Direct association with therapy | Observer reliability | Direct association with therapy is not one of the potential problems of behavioral observation. Behavioral observation is primarily used to identify and analyze behavior patterns to establish intervention strategies. Therefore, a direct association with therapy is not necessary for behavioral observation. Observer reli... | Behavioral observation is an important method for observing and assisting in the diagnosis and treatment of a patient's behavior, but the direct association with therapy is the least related issue. This is because behavioral observation simply involves observing and recording a patient's behavior, not directly determin... | C | Clinical Psychology | dev | dev/clinical_psychologist_dev.tsv | 3 | 13 |
Which of the following is NOT a factor that leads to good outcomes in short-term psychotherapy? | Avoidance of the problem | Therapist's warmth and empathy | A strong therapeutic alliance | Client's appropriate positive expectations | Among the options, 'avoidance of the problem' is not a factor that leads to good outcomes in short-term psychotherapy. Avoiding the problem means postponing or evading it, and in psychotherapy, it is important to confront and solve the problem. | 'Avoidance of the problem' is the answer. It refers to avoiding or ignoring the problem during the therapeutic process, which cannot be a factor that leads to good outcomes in short-term psychotherapy where it is important to confront and resolve issues. Therefore, 'therapist's warmth and empathy', 'a strong therapeuti... | A | Clinical Psychology | dev | dev/clinical_psychologist_dev.tsv | 4 | 14 |
What is the first training activity performed by an adolescent with Autism Spectrum Disorder when teaching them how to wash their hair using the backward chaining method? | Turn on the faucet. | Rub and rinse the hair. | Turn off the faucet. | Dry the hair with a towel. | Using the backward chaining approach, an occupational therapist would initially focus on instructing the adolescent in the last step of the hair-washing process, which is typically using a towel to dry the hair. After the adolescent becomes proficient in this final step, the therapist would introduce the preceding step... | In backward chaining, an occupational therapist would start by teaching the final step of the activity first. In the context of washing hair, the last step is typically drying the hair with a towel. Once the adolescent has mastered this step, the therapist would then teach the step that comes before it, such as turning... | D | Occupational Therapy | dev | dev/occupational_therapist_dev.tsv | 0 | 15 |
What is the structure that consists of lymphoid tissue gathered in the mucosal epithelium surrounding the pharynx, forming small, round masses? | spleen | lymph node | tonsil | thyroid gland | Tonsils are components of the lymphatic system situated in the region of the throat. They are composed of lymphoid tissue that aggregates into small, spherical clusters embedded within the mucosal lining of the pharynx. Tonsils contribute to the immune defense by capturing and sifting through pathogens such as bacteria... | The tonsils are part of the lymphatic system and are located in the throat area. They consist of lymphoid tissue that forms small, round clusters within the mucosal epithelium surrounding the pharynx. The tonsils play a role in the body's immune response by trapping and filtering out bacteria and viruses that enter thr... | C | Occupational Therapy | dev | dev/occupational_therapist_dev.tsv | 1 | 16 |
During depolarization, which ion moves from the outside to the inside of the cell membrane, changing the inside of the cell membrane to a positively charged state? | Mg2+ | Cl- | Na+ | Ca2+ | Depolarization refers to a phase in the neuron's action potential when the electrical charge of the cell membrane shifts towards a less negative, or more positive, state. This shift occurs as a result of sodium ions (Na+) rushing into the cell once the voltage-gated sodium channels open. The entry of Na+ from the space... | Depolarization is a stage in the action potential of neurons where the cell membrane's potential becomes less negative (more positive). This is primarily due to the influx of sodium ions (Na+) when voltage-gated sodium channels open. The movement of Na+ from the extracellular space into the cell changes the membrane po... | C | Occupational Therapy | dev | dev/occupational_therapist_dev.tsv | 2 | 17 |
What is the structure that transports urine from the kidney to the bladder? | urethra | ureter | prostate | collecting tube | The ureters are two muscular ducts responsible for moving urine from the kidneys to the urinary bladder. Each ureter extends from one kidney, facilitating the downward flow of urine to the bladder via rhythmic contractions known as peristalsis. In contrast, the urethra is the channel through which urine is expelled fro... | The ureter is a pair of muscular tubes that propel urine from the kidneys to the urinary bladder. Each kidney is connected to a ureter, which moves urine down to the bladder through peristaltic movements. The urethra, on the other hand, is the tube that carries urine out of the body from the bladder. | B | Occupational Therapy | dev | dev/occupational_therapist_dev.tsv | 3 | 18 |
What is the structure common to both the ulna and the radius? | styloid process | radial fossa | trochlea | olecranon | The styloid process is a bony prominence found at the far end of both the ulna and the radius, the pair of bones constituting the forearm. It functions as a site for ligament attachment and plays a role in the movement capabilities of the wrist joint. The radial fossa and trochlea are unique to the humerus, whereas the... | The styloid process is a pointed projection of bone that extends from the distal ends of both the ulna and the radius, which are the two bones that make up the forearm. This structure serves as an attachment point for ligaments and is involved in the wrist joint's range of motion. The radial fossa and trochlea are spec... | A | Occupational Therapy | dev | dev/occupational_therapist_dev.tsv | 4 | 19 |
Which statement is correct regarding the prognosis based on language assessment results? | Prognosis does not change over time. | Constitution and environment do not influence the prognosis. | It provides certainty about the long-term prognosis. | It is the clinician's prediction based on test results and current functional level. | In speech-language pathology, the outlook for a patient's progress, or prognosis, is predicted by a speech-language pathologist by evaluating the person's present level of functioning and their performance on language assessments. | The prognosis in the context of speech-language pathology is not static and can change over time. It is influenced by various factors, including the individual's constitution and environment. While long-term predictions can be uncertain, a clinician can make an informed prediction about the prognosis by considering the... | D | Speech Pathology | dev | dev/speech_pathologist_dev.tsv | 0 | 20 |
What statistical method can be applied to study the impact of a child's gender, television viewing time, and interaction time with the mother on the child's expressive language development? | Frequency analysis | One-way ANOVA | Paired sample analysis | Multiple regression analysis | Multiple regression analysis is a statistical approach that enables the investigation of the influence of several independent variables on a single outcome variable. For this scenario, the outcome variable is the child's expressive language development, and the predictors include the child's gender, the amount of time ... | Multiple regression analysis is a statistical technique that allows researchers to examine the relationship between a single dependent variable and multiple independent variables. In this case, the dependent variable is the child's expressive language development, and the independent variables are the child's gender, t... | D | Speech Pathology | dev | dev/speech_pathologist_dev.tsv | 1 | 21 |
Which of the following is a correct description of a language learning disability? | It shows difficulties in reading and writing. | It does not show problems with higher-level language abilities. | It occurs due to visual or motor disabilities. | It often accompanies autism spectrum disorder. | Language learning disabilities, such as dyslexia, are characterized by difficulties with reading and writing stemming from issues with processing language. These challenges are not directly caused by visual or motor impairments. Although language learning disabilities may occur alongside other disorders like autism spe... | Language learning disabilities, such as dyslexia, typically involve challenges with reading and writing. These difficulties are due to problems with language processing, not necessarily related to visual or motor disabilities. While language learning disabilities can co-occur with other conditions, including autism spe... | A | Speech Pathology | dev | dev/speech_pathologist_dev.tsv | 2 | 22 |
What is an appropriate maintenance phase activity for fluency shaping therapy in adults who stutter? | Pausing briefly at moments of stuttering and then starting again | Speaking simultaneously with another person | Regularly participating in stuttering support groups | Gradually reducing the rate of speech | For adults undergoing fluency shaping therapy for stuttering, engaging in activities during the maintenance phase is key to preserving the progress made earlier in treatment. Involvement in stuttering support groups is particularly beneficial, as it provides a chance to continuously apply fluency skills in a welcoming ... | In the context of fluency shaping therapy for adults who stutter, maintenance phase activities are crucial for sustaining the improvements achieved during the initial stages of therapy. Regular participation in stuttering support groups offers individuals the opportunity to practice fluency techniques in a supportive e... | C | Speech Pathology | dev | dev/speech_pathologist_dev.tsv | 3 | 23 |
Which task is most prominently impaired in patients with right hemisphere damage? | Repeating words | Responding to simple questions | Understanding idioms | Naming objects in view | Damage to the right hemisphere of the brain can lead to difficulties in grasping non-literal aspects of language, such as idioms, metaphors, and sarcasm. This is due to the right hemisphere's role in processing the subtleties of language that go beyond the direct meaning of words. | The right hemisphere of the brain is responsible for processing non-literal language, emotional expression, and complex visual-spatial skills. When this hemisphere is damaged, patients may have trouble with tasks that involve understanding figurative language, such as idioms, metaphors, and sarcasm. This is because the... | C | Speech Pathology | dev | dev/speech_pathologist_dev.tsv | 4 | 24 |
What should be the maximum surface temperature of a device attachment that is not intended to heat the patient? | 43℃ | 36℃ | 38℃ | 41℃ | The surface temperature of a device attachment that is not intended to heat the patient should not exceed 41℃. This is because temperatures above this threshold can damage human skin tissue. Additionally, temperatures above 41℃ can raise the patient's body temperature and may cause side effects such as thermal burns. T... | Medical devices that are not intended to heat the patient have a set standard temperature for the surface of their attachments to prevent risks such as skin damage and burns to the patient. This standard temperature is set at 41℃ because it is considered a safe temperature for use on areas of the patient's skin that ar... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 0 | 25 |
What is the band of electromagnetic waves used in a thermographic camera? | X-ray | Microwave | Ultraviolet | Infrared | The electromagnetic waves used in thermographic cameras must be in a safe band that does not have harmful effects on the human body. Therefore, 'X-rays' and 'Microwaves' have too high energy and can be harmful to the human body, and 'Ultraviolet' can have harmful effects on the human body in some bands, so it is not us... | The band of electromagnetic waves used in thermographic cameras is infrared. It is used to detect the heat emitted from the human body because the wavelength of the infrared matches the wavelength of the heat emitted by the body. X-rays and microwaves can be harmful to the human body, and ultraviolet has less impact on... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 1 | 26 |
Which of the following is not a suitable material for the membrane oxygenator in an artificial heart-lung machine? | Ceramic membrane | Teflon membrane | Silicon rubber membrane | Polypropylene membrane | The materials used for the membrane oxygenator in an artificial heart-lung machine include Silicon rubber membrane, Polypropylene membrane, and Teflon membrane, but Ceramic membrane is not used. Ceramic membrane is a material used in other fields and is not used in artificial heart-lung machines. | In artificial heart-lung machines, membrane oxygenators are used to exchange oxygen and carbon dioxide. The appropriate materials for this application should allow the passage of oxygen and carbon dioxide while also being durable and resistant to deformation over time. Therefore, 'Ceramic membrane' is not an appropriat... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 2 | 27 |
Which device diagnoses the condition of bones by measuring the calcium concentration in bones using X-rays or ultrasound? | Bone densitometer | Sphygmomanometer | Patient monitor | Capsule endoscopy | A bone densitometer uses X-rays or ultrasound to measure the calcium concentration in bones, thereby determining the density and strength of the bones. Therefore, it is used to diagnose the condition of bones. | A bone densitometer measures the calcium concentration in bones to determine the density and strength of the bones. Through this, bone diseases such as osteoporosis can be diagnosed and prevented. Therefore, its purpose and measurement methods differ from other devices like X-rays or ultrasound. | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 3 | 28 |
Which of the following is NOT a typical method for processing analog biological signals? | Demodulation | Synthesis | Modulation | Amplification | The concept of 'Synthesis' does not exist as a typical method for processing analog biological signals. | Typical methods for processing analog biological signals include amplification, modulation, and demodulation. However, 'Synthesis' is not a typical method. Synthesis means combining multiple signals into one signal. But biological signals represent individual biological characteristics, so it is not possible to combine... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 4 | 29 |
The wall of the heart is structured in three layers. What is the correct order of these layers from the outermost to the innermost? | Endocardium-Myocardium-Epicardium | Endocardium-Epicardium-Myocardium | Epicardium-Endocardium-Myocardium | Epicardium-Myocardium-Endocardium | The wall of the heart is composed of three layers, which from the outside to the inside are the epicardium, myocardium, and endocardium. The epicardium is the outermost layer that surrounds the heart, protecting it and anchoring it in place. The myocardium is the middle layer, consisting of the muscle responsible for t... | The correct answer is 'Epicardium-Myocardium-Endocardium'. The wall of the heart is structured in three layers, and the role of each layer is as follows: 1. Epicardium: This is the outermost layer that surrounds the heart, protecting it and anchoring it in place. 2. Myocardium: This middle layer is composed of muscle f... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 5 | 30 |
Which of the following biomaterials has the lowest modulus of elasticity? | Aluminium | Zirconium | Stainless steel | Synovial fluid | Synovial fluid is a fluid, therefore it has the lowest modulus of elasticity. Stainless steel, aluminium, and zirconium are all solids, so they have higher moduli of elasticity. | Synovial fluid is a fluid found within the human body that lubricates joints and absorbs shocks. To perform these functions, it must have a low modulus of elasticity. Synovial fluid has a high viscosity and a low modulus of elasticity, making it an ideal biomaterial. Therefore, synovial fluid has the lowest modulus of ... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 6 | 31 |
Where is insulin produced? | Kidney | Spleen | Liver | Pancreas | Insulin is produced by beta cells within the pancreas. | The pancreas is the organ that secretes insulin, and without a pancreas, the body cannot secrete enough insulin, which can lead to diabetes. | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 7 | 32 |
Which method can be used to analyze the crystal structure by calculating the interplanar spacing within the biomaterial? | X-ray diffraction analysis | Scanning electron microscopy | X-ray tomography | X-ray energy dispersive analysis | The internal crystal structure of biomaterials can be analyzed using X-ray diffraction analysis. This method involves shooting X-rays and measuring the angles and intensities of the X-rays that are reflected by the crystal structure inside the sample. The other options are primarily used to understand the surface morph... | One of the methods to analyze the internal crystal structure of biomaterials is X-ray diffraction analysis. This method involves shooting X-rays at the sample and measuring the angles and intensities of the X-rays that are reflected by the internal crystal structure to analyze the crystal structure. This technique can ... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 8 | 33 |
Which device is used in the image acquisition part of PACS? | ODJ | Plotter | Film digitizer | ATM | In the image acquisition part of PACS, it is necessary to convert images taken on film into digital form. For this purpose, a 'film digitizer' device is used. This device scans the images on the film and converts them into digital images. Therefore, PACS uses a 'film digitizer' to store and manage film images in digita... | In the image acquisition part of PACS, it is necessary to convert images taken on film into digital form. For this purpose, a film digitizer is used. A film digitizer is a device that scans images on film and converts them into digital images. Therefore, 'film digitizer' is the correct answer. ODJ, ATM, and Plotter are... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 9 | 34 |
Which of the following is not a property of biomedical ceramic materials? | Biocompatible. | Easy to mold and process. | High compressive strength. | Wear resistance and corrosion resistance. | The characteristic that is least associated with biomedical ceramic materials is 'Easy to mold and process.' This is because ceramic materials are processed at high temperatures, making them difficult to mold and process. Additionally, ceramic materials are known for their strong wear and corrosion resistance, biocompa... | Answer: 'Easy to mold and process.' Explanation: Biomedical ceramic materials are used inside the human body, where biocompatibility is one of the most important factors. Therefore, it is typical for biomedical ceramic materials to exhibit excellent biocompatibility. On the other hand, 'Easy to mold and process.' is a ... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 10 | 35 |
What type of test conditions are implemented when evaluating biocompatibility using cells or tissues? | Clinical test | Animal test | In vitro test | In vivo test | Biocompatibility evaluation using cells or tissues is classified as an In vitro test. This is conducted outside of a living body and aims to simulate the response within the body. Therefore, it is distinct from Animal tests or Clinical tests. | Evaluating biocompatibility by culturing cell proliferation or biological tissues corresponds to an In vitro test. Since the test is conducted outside of a living organism, it has the ethical advantage over Animal tests or In vivo tests when assessing biocompatibility. | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 11 | 36 |
What is the name of the electromyography method that measures and records the action potentials generated from muscles under the control of a nerve by directly applying electrical stimulation to the peripheral nerve? | Evoked electromyography | Bipolar electromyography | General electromyography | Surface electromyography | Evoked electromyography is a method that measures the action potentials generated from muscles by directly applying electrical stimulation to the peripheral nerve. Therefore, unlike the other options, it requires external stimulation, and it is used to check the state of nerve-muscle connections and for the diagnosis o... | Electromyography is one of the methods to measure muscle activity, and the type that involves directly applying electrical stimulation to the peripheral nerve to measure the action potentials generated in the muscles is called evoked electromyography. Therefore, the reason 'Evoked electromyography' is the correct answe... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 12 | 37 |
Which of the following is NOT a component of an extracorporeal shock wave lithotripter? | Positioning device | Shock wave transmission medium | Temperature control device | Shock wave generator | An extracorporeal shock wave lithotripter consists of a shock wave transmission medium, a positioning device, and a shock wave generator. Among these, the temperature control device is not a necessary component for the operation of the lithotripter, which is why it is the correct answer. | An extracorporeal shock wave lithotripter is composed of a shock wave generator that generates shock waves, a shock wave transmission medium that transmits the shock waves, and a positioning device that measures the location. Therefore, a temperature control device is not a component of an extracorporeal shock wave lit... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 13 | 38 |
Which part of the brain is responsible for sensory information related to balance, movement, and muscle tone, and corresponds to the homeostatic regulator that maintains normal body temperature? | Midbrain | Cerebrum | Cerebellum | Diencephalon | The cerebellum is responsible for sensory information related to the body's balance, movement, and muscle tone, but it is not the homeostatic regulator that maintains normal body temperature. The hypothalamus, part of the diencephalon, primarily performs this function. | The cerebellum plays an important role in motor control, balance, and coordination, but it is not directly involved in the regulation of body temperature. The hypothalamus, which is a part of the diencephalon, is the key brain structure for homeostasis and is responsible for regulating body temperature, hunger, thirst,... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 14 | 39 |
Which of the following descriptions about the gamma camera is incorrect? | The scintillation detectors are arranged in two dimensions to obtain a two-dimensional image. | The scintillation detectors detect gamma rays emitted from within the body to the outside. | No mechanical scanning action is required to obtain the image. | The scintillation crystal converts gamma rays into infrared rays. | The statement that the scintillation crystal converts gamma rays into infrared rays is incorrect. The scintillation detectors detect gamma rays emitted from within the body to the outside and use this to obtain a two-dimensional image. Mechanical scanning action is required for this. | The statement that the scintillation crystal converts gamma rays into infrared rays is incorrect. A gamma camera consists of scintillation detectors and scintillation crystals. The scintillation detectors are used to detect gamma rays and obtain images of the inside of the body, while the scintillation crystals convert... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 15 | 40 |
To classify medical procedures using a combination code that arranges the actions, instruments, purposes, and parts of the therapeutic process in order, how many total codes are needed if there are 10 types of actions, 10 types of instruments, 10 types of purposes, and 20 types of parts? | 10,000 types | 50 types | 20,000 types | 10,020 types | The total number of codes is the product of the number of each element. Therefore, 10 x 10 x 10 x 20 = 20,000, so the correct answer is '20,000 types'. | The total number of codes is 20,000, which is the result of 10 x 10 x 10 x 20. This is because each element can be combined independently. | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 16 | 41 |
Which gas is used for freezing purposes such as preserving umbilical cord blood? | Carbon dioxide | Oxygen | Hydrogen | Nitrogen | Nitrogen is the safest and most stable gas used for freezing purposes, which is why it is widely used in medical fields such as preserving umbilical cord blood. Additionally, nitrogen makes up the largest proportion of air, making it relatively inexpensive to obtain. | Nitrogen has excellent freezing properties and high safety, making it widely used in the medical field for freezing purposes. It is particularly used for preserving umbilical cord blood because nitrogen minimizes tissue damage during freezing while enabling uniform freezing. Moreover, as the most abundant component in ... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 17 | 42 |
What is the correct sequence of inflammatory response around the damaged wound tissue caused by the insertion of biomaterials? | Capillary dilation → Cell infiltration → Extraction → Disintegration → Epithelialization | Capillary dilation → Cell infiltration → Regeneration → Epithelialization → Disintegration | Capillary dilation → Cell infiltration → Epithelialization → Regeneration → Disintegration | Capillary dilation → Cell infiltration → Disintegration → Extraction → Epithelialization | The correct answer is 'Capillary dilation → Cell infiltration → Regeneration → Epithelialization → Disintegration'. When tissue damage occurs due to the insertion of biomaterials, capillaries dilate and an inflammatory response occurs. Then, cells infiltrate and tissue regeneration takes place, followed by the formatio... | The correct answer is 'Capillary dilation → Cell infiltration → Regeneration → Epithelialization → Disintegration'. When biomaterials are inserted into wound tissue, capillary dilation initiates the inflammatory response. Subsequently, cells infiltrate to regenerate the wound tissue, and then epithelialization is forme... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 18 | 43 |
Which of the following is not a function or purpose of an upper limb orthosis? | To support body weight | To protect weak muscles | To protect painful areas or prevent deformities | To maintain a constant angle of the joints | To support body weight is not a primary purpose of an upper limb orthosis, unlike the other options, because it is related to the general structure of the body. Upper limb orthoses are primarily designed to protect weak muscles, maintain a constant joint angle, and protect painful areas or prevent and correct deformiti... | The functions and purposes of an upper limb orthosis include protecting weak muscles, maintaining a constant joint angle to protect painful areas, or to prevent deformities. However, 'To support body weight' is not related to the purpose of an upper limb orthosis. Upper limb orthoses are mainly used by people with musc... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 19 | 44 |
Which of the following is NOT a function of the kidneys? | Synthesis and breakdown of glycogen | Regulation of body fluids and electrolytes | Blood pressure regulation | Maintenance of acid-base balance | The kidneys do not have the function of synthesizing and breaking down glycogen. This function is carried out by the liver. The kidneys are responsible for regulating blood pressure, maintaining acid-base balance, and controlling body fluids and electrolytes. | The kidneys do not possess the function of synthesizing and breaking down glycogen; this is the role of the liver. The kidneys remove waste from the blood, regulate the concentration of body fluids and electrolytes, control blood pressure, and maintain acid-base balance. | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 20 | 45 |
Which of the following cannot be tested using spectrophotometry? | Serum test | Component test | Hormone test | Red/white blood cell test | Spectrophotometry is used to measure the amount of components in the blood, and serum tests and hormone tests can be conducted using this method. However, red and white blood cells are not components in the blood but blood cells, so they cannot be tested using spectrophotometry. Therefore, the correct answer is 'Red/wh... | Spectrophotometry is a method that uses the wavelength of light to analyze the components of a substance. Therefore, 'Component test' which examines the components within the blood, 'Serum test' which measures the amount of components in the blood, and 'Hormone test' which examines hormones in the blood can all be cond... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 21 | 46 |
Which of the following is NOT a component of the Gamma Knife? | Harmonic oscillator | Patient table | Collimator helmet | Radiation unit | The Gamma Knife is a radiosurgery device used for treating brain tumors, consisting of a radiation unit, a collimator helmet, and a patient table. The harmonic oscillator is not related to the Gamma Knife. | Among the components of the Gamma Knife, there is no harmonic oscillator. The Gamma Knife is composed of a radiation unit, a collimator helmet, and a patient table. The radiation unit generates gamma rays, the collimator helmet focuses the gamma rays to a precise location, and the patient table securely positions the p... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 22 | 47 |
What is related to the resting potential? | K+ ion | H2O | Da+ ion | O2 | The resting potential refers to the electrical difference across the cell membrane of nerve cells or muscle cells. This electrical difference is primarily maintained by the movement of ions. K+ ions are relatively abundant inside the cell membrane and can pass through the cell membrane via ion channels. Therefore, the ... | The resting potential signifies the electrical difference between the inside and the outside of a neuron. This electrical difference is primarily maintained by the movement of ions. K+ ions have a high concentration inside the neuron and can exit to the outside through ion channels. The movement of these K+ ions plays ... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 23 | 48 |
Which component of a PET scanner is used to collect the position information of annihilation radiation? | Coincidence circuit | Scintillator | Collimator | Photomultiplier tube | In PET imaging, the detection of annihilation radiation, which occurs due to the interaction between positrons and electrons, is essential for image creation. A device that collects the position information of the annihilation radiation is required for this purpose. This device is the coincidence circuit. The coinciden... | PET imaging detects annihilation radiation resulting from the collision of positrons and electrons to create images. To collect the position information of the annihilation radiation, photomultiplier tubes and scintillators are used. The photomultiplier tube amplifies the photons produced at the location where the anni... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 24 | 49 |
Which of the following is NOT a measurement parameter of patient monitoring devices? | Blood oxygen saturation, respiratory rate | Respiratory rate, body temperature | Electrocardiogram, blood oxygen saturation | Body temperature, electromyography | The correct answer is 'Body temperature, electromyography'. The reason is that patient monitoring devices are primarily used to monitor cardiac and respiratory functions. Therefore, body temperature and electromyography are not typically monitored. | Body temperature and electromyography are not measurement parameters of patient monitoring devices. These devices mainly measure parameters such as electrocardiograms, blood oxygen saturation, and respiratory rate. Body temperature is generally measured using a thermometer, and electromyography is used to measure muscl... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 25 | 50 |
What is the name of the medical expert system created for the diagnosis, treatment, and advice system for bloodborne diseases and meningitis? | MYCIN | PROSPECTOR | EXPERT | CENTAUR | Correct Answer: MYCIN. Explanation: MYCIN is a medical expert system developed for the diagnosis, treatment, and advisory system for bloodborne diseases and meningitis. It was developed in the 1970s. This system implements the knowledge of experts into a computer program, analyzing the symptoms and diagnostic results o... | The correct answer is 'MYCIN.' MYCIN is a medical expert system that utilizes artificial intelligence technology developed in the 1970s for the diagnosis, treatment, and advice of bloodborne diseases and meningitis. MYCIN has the technical capability to analyze a patient's symptoms and test results to make diagnoses an... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 26 | 51 |
Which of the following is not an interaction between the human body and diagnostic radiation? | Compton scattering | Pair production | Ionization | Mass defect | Mass defect is a phenomenon that occurs within atomic nuclei, where a neutron is produced through the combination of an electron and a positron during nuclear reactions. This is not an interaction with radiation and is not directly related to the properties of radiation. Therefore, mass defect does not pertain to the i... | The term 'mass defect' refers to the phenomenon where the mass inside an atomic nucleus is less than the sum of the masses of the electrons and neutrons. It occurs during nuclear fission and fusion, which are the causes of radioactivity. Interactions between the human body and diagnostic radiation include ionization, p... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 27 | 52 |
Which test belongs to dynamic testing method that measures the mechanical properties of biomaterials caused by repetitive loading? | Compression test | Tensile test | Hardness test | Fatigue test | The fatigue test is a method for measuring how durable a biomaterial is under repetitive loading. This test plays a crucial role in predicting the durability of biomaterials under the repetitive loads they will experience during actual use. Therefore, the fatigue test is one of the very important testing methods for ev... | While static tests measure the deformation of a material under a fixed load, dynamic tests measure the fatigue properties of a material under repetitive loading. Therefore, the 'fatigue test' belongs to dynamic testing that measures the mechanical properties caused by repetitive loading. This test is important for eval... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 28 | 53 |
What is the first phenomenon that occurs when a medical device made of biomaterials enters the bloodstream? | Formation of fibrin network | Protein denaturation and adsorption | Attachment of red blood cells to the foreign surface | Attachment of white blood cells to the material surface | The first phenomenon that occurs when a medical device made of biomaterials enters the bloodstream is protein denaturation and adsorption. This refers to the interaction and subsequent transformation or adsorption of proteins on the surface of the medical device with proteins in the blood. This is an important factor t... | When a medical device made of biomaterials enters the bloodstream, the first phenomenon that occurs is protein denaturation and adsorption. This phenomenon involves the adsorption and transformation of blood proteins on the surface of the medical device, which promotes interaction between the medical device and the blo... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 29 | 54 |
Which of the following is not related to the Anatomical Therapeutic Chemical (ATC) classification system? | It has a hierarchical structure, allowing for logical grouping. | Combination products cannot be included. | It uses mnemonic codes. | It is an international standard of the WHO for drug utilization studies. | The correct answer is 'Combination products cannot be included.' The ATC is an international classification system for drugs, which does not classify drugs based on their chemical structure or mechanism of action, but rather on the therapeutic use and route of administration of the drugs. Therefore, saying that it uses... | Presenting the chemical characteristics of drugs is one of the main roles of the ATC code, but using mnemonic codes is also a feature of the ATC code. Mnemonic codes are used to assign codes based on the name or ingredients of the drug, and are used in the ATC code system. Hence, the correct answer is 'Combination prod... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 30 | 55 |
Which device does not use a catheter? | Fetal stethoscope | Invasive blood pressure monitor | Thermodilution cardiac output monitor | Intracranial pressure monitor | The fetal stethoscope is a medical device that allows one to listen to the fetal heart sounds without the use of a catheter. The other options involve devices that use a catheter to measure blood pressure or cardiac function. | A fetal stethoscope is a device used to listen to the heart sounds of a fetus and does not use a catheter. The other options listed are devices that require the insertion of a catheter into the blood vessels to measure blood pressure or cardiac function, making the fetal stethoscope the correct answer as it does not us... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 31 | 56 |
Which medical device measures body composition such as water, protein, and fat by flowing a constant alternating current through the body and measuring impedance? | Hemodialysis machine | Electrosurgical unit | Electromyograph | Body composition analyzer | A body composition analyzer is a medical device that measures the impedance in the body by flowing a constant alternating current to determine the body's water, protein, and fat content. Therefore, it has the function of analyzing the components of the body, which is different from the functions of an electromyograph, ... | The function of flowing a constant alternating current through the body and measuring impedance to analyze components such as water, protein, and fat content is specific to a body composition analyzer. The other options involve devices with different functions: an electromyograph measures muscle activity, a hemodialysi... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 32 | 57 |
Which of the following is NOT commonly measured by a patient monitoring device? | Electrocardiogram (ECG) | Body temperature | Blood pressure | Electromyography (EMG) | Patient monitoring devices commonly measure signals such as electrocardiograms, blood pressure, and body temperature. Electromyography, which is used to measure muscle activity, is not commonly used in patient monitoring devices. | While physiological signals measured by patient monitoring devices, such as white blood cell count, blood oxygen saturation, and respiration, are all related to the functions of the body, electromyography measures muscle activity and is not directly related to the physiological functions of the body. Therefore, electro... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 33 | 58 |
Which action of laser medical devices causes disruption of cell membranes, evaporation of water from cells, swelling, and cell rupture? | Blood coagulation action | Thermal action | Electrical action | Photonic action | When electromagnetic waves are absorbed by body tissue cells, the energy of the electromagnetic waves causes the molecules inside the tissue cells to vibrate, generating heat. This thermal action raises the temperature of the tissue cells, causing dysfunction or destruction. Therefore, the most important effect of elec... | Laser medical devices generate high-energy light beams that deliver heat to the tissue interior. This causes the molecules inside the tissue to vibrate, and this vibration generates heat. This thermal action leads to the destruction of cell membranes, evaporation of water from cells, expansion, and cell rupture. Theref... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 34 | 59 |
What is the type of a material such as alumina that does not cause any chemical reaction in the body after being implanted into biological tissue? | Biocompatible synthetic material | Bioactive material | Bioabsorbable material | Bioinert material | Bioinert materials are those that do not react or react very little after being implanted into biological tissues, and new fibrous tissue may form on the surface of the material. This is because the material remains stable within the body and does not interact with biological tissues. Therefore, bioinert materials are ... | Bioinert materials are materials that do not cause chemical reactions within the body and remain unchanged after implantation into biological tissues. Such materials are commonly used in artificial joints, dental prostheses, etc., and ceramic materials like alumina are typical examples. These materials are stable withi... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 35 | 60 |
Which of the following is NOT an imaging variable in Magnetic Resonance Imaging (MRI)? | Spin-spin relaxation time (T2) | Hydrogen density | Spin-lattice relaxation time (T1) | Electron density | The correct answer is 'Electron density'. MRI uses the magnetic resonance of hydrogen atoms to create images, and electron density is not a variable related to hydrogen atoms. The imaging variables used in MRI are hydrogen density, spin-lattice relaxation time (T1), and spin-spin relaxation time (T2). | Electron density is not a variable used in MRI imaging. MRI generates images using the magnetic resonance of hydrogen atoms, and since electron density is not related to hydrogen atoms, it is not a variable in MRI. Hydrogen density is related to the brightness in the image, and T1 and T2 are related to the contrast of ... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 36 | 61 |
What is the typical material used for metal electrodes in biopotential signal measurement? | Lead (Pb) | Copper (Cu) | Ag-AgCl | Aluminum (Al) | Biopotential signal measurement electrodes are in contact with the human body, so a safe and stable electrode material is required. Ag-AgCl is commonly used for this purpose. It is a safe and stable material that allows for accurate measurement of electrical signals between the electrode and the body. Additionally, sil... | Biopotential signal measurement electrodes are used to measure electrical signals, and it is important to minimize the contact resistance between the electrode and the skin for accurate measurements. The electrode material must be electrically stable and have minimal impact on skin contact. Ag-AgCl satisfies these cond... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 37 | 62 |
Which of the following structures is not part of the hindbrain? | pons | hypothalamus | cerebellum | vermis | The hypothalamus is connected to the pituitary gland and regulates the secretion of hormones, as well as body temperature, water balance, and appetite, so it does not belong to the hindbrain. | The hypothalamus is located in the central part of the brain and plays a role in regulating biological activities such as hormone secretion, body temperature regulation, and water balance. Therefore, the hypothalamus, which is located between the midbrain and the thalamus, does not belong to the hindbrain and is the co... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 38 | 63 |
Which of the following statements about hemodialysis is incorrect? | In hemodialysis, solute removal is achieved through diffusion and convection, while fluid removal is achieved through ultrafiltration. | Complications of hemodialysis can include hypotension, muscle cramps, and dialysis disequilibrium syndrome. | A dialysis solution that interacts with blood to remove waste and excess fluid while replenishing and maintaining necessary electrolytes is required, and its concentration is similar to that of plasma. | Inserting a catheter into a vein for vascular access is called an arteriovenous fistula. | The statement that inserting a catheter into a vein for vascular access is called an arteriovenous fistula is incorrect. An arteriovenous fistula is actually created by directly connecting an artery to a vein, not by inserting a catheter into a vein. | The statement that solute removal in hemodialysis is achieved through diffusion and convection, and fluid removal is achieved through ultrafiltration is correct. The reason why inserting a catheter into a vein is not called an arteriovenous fistula is that an arteriovenous fistula involves a direct connection between a... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 39 | 64 |
Which of the following is NOT a clinical impact of PACS (Picture Archiving and Communication System)? | Real-time interpretation, improved clinical efficiency through automation, decentralization of radiology services | Standards are unnecessary for the exchange of imaging information | Facilitates collaborative research through data sharing | Ease of use of imaging data for educational purposes | The statement that standards are unnecessary for the exchange of imaging information is incorrect. PACS requires standardized formats for exchanging and storing imaging information, which is why a standardized exchange method is necessary. For this purpose, there is an international standard called DICOM. | The option stating that standards are unnecessary for the exchange of imaging information is incorrect. PACS supports the storage and exchange of imaging data generated from medical imaging equipment of various manufacturers in a standardized format. For this, it uses an international standard protocol called DICOM (Di... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 40 | 65 |
Which combination of factors affecting the degree of heat transfer from biological tissues is incorrect? | Tissue density, blood density, blood flow | Tissue density, tissue specific heat, convection | Blood flow, blood density, blood specific heat | Tissue density, tissue specific heat, blood flow | The answer is 'Tissue density, tissue specific heat, convection'. Tissue density and specific heat are indeed factors that affect the degree of heat transfer in tissues, but convection is related to the flow of blood. Therefore, the combination 'Tissue density, tissue specific heat, convection' is incorrect in the cont... | Convection is not a combination of factors that affects the degree of heat transfer from biological tissues. Convection refers to the flow of fluids or air and is related to heat transfer, but it is not a direct factor affecting heat transfer. The answer is 'Tissue density, tissue specific heat, convection'. Tissue den... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 41 | 66 |
Which of the following statements about the heart is incorrect? | Among the walls of the left atrium, left ventricle, right atrium, and right ventricle, the wall of the left ventricle is the thickest. | The plateau phase in the cardiac muscle action potential curve is due to the action of Fe. | The action potential of the cardiac muscle lasts longer than that of the skeletal muscle. | Arrhythmia refers to an abnormality in the heart's excitation process or its conduction process, leading to an irregular heart rhythm. | The statement that the plateau phase in the cardiac muscle action potential curve is due to the action of Fe is incorrect. The plateau is a phenomenon where the potential of the cardiac muscle is maintained at a certain level, and this is due to the action of Ca2+. The influx of Ca2+ into the cardiac muscle cells creat... | The statement that the plateau phase in the cardiac muscle action potential curve is due to the action of Fe is incorrect. The plateau refers to the phase where the potential of the cardiac muscle is maintained at a certain level, and this is due to the action of Ca2+. The influx of Ca2+ into the cardiac muscle cells c... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 42 | 67 |
Which law is related to the measurement of oxygen saturation? | Imbert-Fick's law | Beer's law on the emission of light | Beer's law on the absorption of light | Kegel exercise | The correct answer is 'Beer's law on the absorption of light'. This law explains the absorption phenomenon that occurs inside a material when light passes through it, stating that the amount of light absorbed is proportional to the concentration of the material and its properties. Therefore, in the measurement of oxyge... | The measurement of oxygen saturation is a method that determines the oxygen concentration by measuring the amount of light absorbed as the light passes through a sample. Beer's law on the absorption of light states that the concentration of a substance within a sample is proportional to the amount of light absorbed. Th... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 43 | 68 |
Which of the following is commonly known as Teflon and primarily used for making artificial blood vessels? | PP (Polypropylene) | PE (Polyethylene) | Polyester | PTFE (Polytetrafluoroethylene) | PTFE is non-stick and has excellent heat resistance, corrosion resistance, and durability, making it suitable for the production of artificial blood vessels. It is also commonly used because its biocompatibility has been verified for safe use within the human body. | Teflon is a trade name for PTFE (Polytetrafluoroethylene), which has very high heat resistance and chemical resistance, making it suitable for the production of medical devices such as artificial blood vessels. The other options do not possess these characteristics. | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 44 | 69 |
Which of the following is NOT a problem that can arise from the use of artificial joints? | Deep wound site infection | Wear of the artificial joint surface | Increased bone density | Dislocation after surgery | Increased bone density is not directly related to the use of artificial joints. An increase in bone density generally occurs in conditions such as osteoporosis and is unrelated to the use of artificial joints. Therefore, among the given options, the one that is NOT a problem that can arise from the use of artificial jo... | Problems that can arise from the use of artificial joints include dislocation after surgery, deep wound site infection, and wear of the artificial joint surface. However, increased bone density is not directly related to the use of artificial joints. Increased bone density generally occurs due to factors such as lack o... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 45 | 70 |
What effect is used to measure the velocity of blood flow by measuring the frequency change of the ultrasound reflected back from the blood cells? | Doppler effect | Photoelectric effect | Electric field effect | Hall effect | When ultrasound is transmitted into the blood vessels, the frequency of the ultrasound reflected back from the blood cells changes. This changed frequency is measured to determine the velocity of blood flow, and this phenomenon is known as the Doppler effect. | As ultrasound passes through the blood vessels, the frequency of the ultrasound that is reflected off the blood cells changes depending on the velocity of the blood flow. This phenomenon is referred to as the Doppler effect. Therefore, when measuring the velocity of blood flow using an ultrasound imaging device, the Do... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 46 | 71 |
Which of the following statements about bio-surface electrodes is incorrect? | Contact resistance is proportional to the area, so the actual contact area with the surface should be reduced. | Paste is used to reduce the impedance with the skin. | The polarization voltage generated from the metal of the electrode should be small. | It should maintain stable contact with the body surface for a long time. | The statement that contact resistance is proportional to the area, so the actual contact area with the surface should be reduced, means that to lower the contact resistance of a bio-surface electrode, it should contact the body surface with as small an area as possible. That is, the larger the area of the electrode, th... | The statements that 'The polarization voltage generated from the metal of the electrode should be small,' 'It should maintain stable contact with the body surface for a long time,' and 'Paste is used to reduce the impedance with the skin' are all correct descriptions of bio-surface electrodes. Therefore, the answer is ... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 47 | 72 |
Which of the following is NOT a goal of medical informatics as proposed by the American Medical Informatics Association (AMIA)? | Increasing the efficiency of medical records | Learning computer operation methods | Computer-assisted learning | Information retrieval and management | Increasing the efficiency of medical records is not a goal but a method, therefore it is not included in the goals proposed by AMIA. The goals of AMIA are to effectively manage and retrieve medical information to aid in patient care. | Increasing the efficiency of medical records is not directly mentioned among the goals proposed by AMIA. The goals of medical informatics typically focus on the efficient management and utilization of medical information, providing information necessary for medical decisions, and improving patient safety and quality of... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 48 | 73 |
Which of the following is NOT a basic function of an incubator? | Ventilation control | Humidity control | Temperature control | Freezing control | An incubator is a device that controls temperature, humidity, and ventilation to aid the growth and development of living organisms, but it does not require a freezing function. In fact, if it had a freezing function, it could negatively affect the growth and development of the organisms. Therefore, 'freezing control' ... | An incubator is a piece of equipment that provides a controlled environment of consistent temperature, humidity, and ventilation to assist the growth and development of living organisms. However, since incubators do not have a freezing function, 'freezing control' is not one of their basic functions. The primary functi... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 49 | 74 |
Which of the following is NOT correct definition of electrocardiogram (ECG) waveforms? | The T wave represents repolarization of the atria | The P wave represents depolarization of the atria | The R wave represents depolarization of the ventricles | The Q wave represents depolarization of the interventricular septum | The answer is 'The T wave represents repolarization of the atria'. The T wave actually represents the repolarization of the ventricles, not the atria, and occurs after the contraction of the ventricles is complete. Therefore, it is incorrect to say that the T wave represents the repolarization of the atria. | The T wave does not represent the repolarization of the atria but rather the repolarization of the ventricles. The T wave indicates the electrical repolarization of the ventricles, the Q wave represents the depolarization of the interventricular septum, the R wave represents the depolarization of the ventricles, and th... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 50 | 75 |
Which of the following is NOT a required property for the metal materials used in artificial hip joints? | Wear resistance | Mechanical strength | Brittleness | Corrosion resistance | Brittleness is not a required property for metal materials used in artificial joints. Brittleness refers to the tendency of a metal to corrode when oxidized in the presence of air. Since artificial joints are located inside the human body, they must not corrode, therefore materials with low brittleness are used. Thus, ... | Brittleness is a property that indicates the susceptibility of metal materials to corrosion due to environmental influences, and the metal materials used in artificial hip joints must not be brittle. Therefore, brittleness is not a property that the metal materials used in artificial hip joints should have. On the othe... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 51 | 76 |
What is the CT number of water? | -1000 | 0 | 2000 | 1000 | The CT number of water is 0. The CT number represents the X-ray attenuation value of a material, and since water almost completely transmits X-rays, its CT number is close to 0. | The CT number for water is 0. This is because, compared to other materials, water has the lowest density when it comes to the passage of X-rays. The CT number is determined by the density of the material and the rate of absorption when X-rays pass through it. Since water has a low density and does not absorb X-rays wel... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 52 | 77 |
Which of the following is NOT a type of mechanical strength test for medical devices? | Rough impact test | Drop test | Leakage current test | Push test | The leakage current test is not related to mechanical strength testing but is used to evaluate the electrical safety of medical devices. Therefore, it is not a type of mechanical strength test. | The leakage current test is unrelated to mechanical strength testing and is used to verify electrical safety. Hence, in this list, only options related to mechanical strength testing should be included, making 'Leakage current test' the answer. 'Push test', 'Drop test', and 'Rough impact test' are all types of mechanic... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 53 | 78 |
Which of the following descriptions about the thermal effects of high-frequency electromagnetic fields on biological tissues is incorrect? | Stimulation of cells occurs frequently, and a decrease in temperature due to thermal action occurs. | At an intensity of 5 mW/cm2, it can affect the testes and cause infertility. | The absorption of heat is indicated by the Specific Absorption Rate (SAR). | At an intensity of 150 mW/cm2, it can affect the eyes and cause cataracts. | The statement that stimulation of cells occurs frequently, and a decrease in temperature due to thermal action occurs is incorrect. High-frequency electromagnetic fields cause movement of ions within cells, which stimulates the cells, but this is a phenomenon separate from thermal action. Therefore, while stimulation o... | The statement that at an intensity of 150 mW/cm2, it can affect the eyes and cause cataracts is incorrect. The thermal effects of high-frequency electromagnetic fields on biological tissues are determined by the Specific Absorption Rate (SAR), and the higher the SAR, the stronger the thermal effect. Therefore, while hi... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 54 | 79 |
Which of the following is a correct description of an analog signal? | A biological signal with discrete variations like voice | A physical quantity that changes discretely depending on current and time | A physical quantity in which voltage and current change continuously depending on time | A physical quantity that changes discretely depending on voltage and time | An analog signal is a physical quantity in which voltage and current change continuously depending on time. It has a continuous wave form and, unlike digital signals, does not have discrete variations. | The statement that a physical quantity in which voltage and current change continuously depending on time is correct. This is a characteristic of analog signals, not digital signals. Digital signals are physical quantities that change discretely depending on voltage and time. They are represented by binary numbers, suc... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 55 | 80 |
What is the most important part of the HIS that digitizes the series of processes centered around patient visits? | EMR | LIS | CDS | OCS | OCS stands for Order Communication System, which is a system that digitizes and manages information such as tests, prescriptions, and appointments necessary for patient care by medical staff such as doctors and nurses when patients visit the hospital. Therefore, it is one of the core parts of HIS and plays an essential... | OCS stands for Order Communication System, which is a system that digitizes and manages information such as tests, prescriptions, and appointments necessary for patient care by medical staff such as doctors and nurses when patients visit the hospital. As the most central part of HIS, it digitizes the series of processe... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 56 | 81 |
Which of the following descriptions about the specificity of biological phenomena is incorrect? | Biological signals are weak and generally have a low signal-to-noise ratio. | There are few transient phenomena, and reproducibility is excellent. | There is a large variation among individuals, but homeostasis is maintained within an individual. | It is difficult to extract a specific signal for a certain part of the body in a pure form. | The statement that there are few transient phenomena, and reproducibility is excellent is incorrect. Biological phenomena are highly transient and have low reproducibility. This is because biological phenomena are very complex and influenced by various factors. Therefore, very sophisticated experimental design and anal... | The incorrect description about the specificity of biological phenomena is 'There are few transient phenomena, and reproducibility is excellent.' In fact, biological phenomena often involve many transient events, and reproducibility can be poor. This is because biological phenomena are influenced by various factors. Th... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 57 | 82 |
What is the term for the electronic health information that is collected over the long term, including a patient's past and present health and medical treatment, as well as relevant facts about their vitality and health status? | Electronic Health Record (EHR) | Automated Medical Record (AMR) | Computerized Medical Record (CMR) | Electronic Smart Record (ESR) | The correct answer is 'Electronic Health Record (EHR)'. EHR refers to the concept of electronically recording and storing a patient's health information, which includes past and present health information, medical treatment history, medication prescriptions, and more. While AMR, CMR, and ESR are all electronic medical ... | The Electronic Health Record (EHR) is a collection of electronic health information that includes a patient's past and present health and medical treatment, as well as relevant facts about their vitality and health status, collected over the long term. Automated Medical Record (AMR) refers to automated medical records,... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 58 | 83 |
What type of hypersensitivity, a pathological antigen-antibody reaction, is caused by specific memory to implants or biomaterials? | Allergy | Defense response | Rejection response | Autoimmunity response | Correct answer: Allergy. Specific memory refers to the memory capacity of antibodies or cells, which react when they come into contact again with an antigen they have previously encountered. If a specific memory to an implant or biomaterial is formed, a hypersensitive reaction occurs when contact is made again, as the ... | An allergy is a reaction where antibodies are produced due to specific memory to an antigen, and these antibodies bind to the antigen, causing a hypersensitive reaction. Therefore, specific memory to implants or biomaterials can lead to the production of antibodies and an allergic reaction. A defense response is a non-... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 59 | 84 |
Which of the following is an initial evaluation test for the biological safety of a medical device? | Carcinogenicity test | Chronic toxicity test | Implantation test | Biodegradability test | The implantation test is used to evaluate the biological safety of medical devices. It is a test that assesses the biological safety when a medical device is implanted into human tissue. The implantation test plays an important role in the evaluation of the biological safety of medical devices because it assesses the b... | The implantation test is one of the tests to evaluate the biocompatibility of medical devices, checking the reactions that occur when in contact with human tissue. Through the implantation test, it is assessed whether a medical device can be safely used within the human body. Therefore, the implantation test is one of ... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 60 | 85 |
Which factor does not significantly affect the signal when measuring an electrocardiogram (ECG)? | Changes in temperature and humidity of the examination room | Baseline fluctuation due to breathing | Interference caused by power line frequency (60Hz) | Noise introduced by muscle movement | Changes in the temperature and humidity of the examination room do not significantly affect the ECG signal. This is because these changes do not directly influence the ECG signal. On the other hand, factors such as muscle movement, power line frequency, and breathing do affect the ECG signal. | Since an electrocardiogram measures the electrical activity of the heart, changes in the temperature and humidity of the examination room do not affect the heart's electrical activity. Therefore, they are not factors that significantly affect the ECG signal. In contrast, muscle movement, breathing, and power line frequ... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 61 | 86 |
What is the phenomenon where substances move in only one direction due to the selective permeability of the cell membrane? | Osmosis | Active transport | Diffusion | Solvent drag | The cell membrane has selective permeability to allow certain substances to pass through. Due to this characteristic, substances move from an area of higher concentration to an area of lower concentration, and the phenomenon where they move in only one direction is called osmosis. Therefore, the correct answer is 'Osmo... | The cell membrane has selective permeability to allow only certain substances to pass through. Due to this characteristic, substances move from an area of higher concentration to an area of lower concentration, which is called osmosis. Therefore, the correct answer is 'Osmosis'. Solvent drag refers to the movement of s... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 62 | 87 |
Which of the following is NOT a component of a cardiopulmonary bypass machine? | Oxygenator | Filter | Blood pump | Arteriovenous fistula | The components of a cardiopulmonary bypass machine include an oxygenator, a filter, and a blood pump. An arteriovenous fistula is not related to the cardiopulmonary bypass machine; it is a vascular anomaly where the arterial wall weakens, allowing blood to leak outside the arterial wall. Therefore, an arteriovenous fis... | A cardiopulmonary bypass machine is composed of an oxygenator to oxygenate the blood, a filter to filter the blood, and a blood pump to circulate the blood. However, an arteriovenous fistula is not a component of this machine. An arteriovenous fistula refers to a situation where blood leaks from an artery due to a rupt... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 63 | 88 |
What is the device that helps to restore function, directly or indirectly heal, or prevent deterioration in areas where the human body has structural defects or lost/reduced function through artificial apparatus or devices? | Artificial joint | Stent | Prosthesis | Orthosis | An orthosis is a device that assists areas of the body with structural defects or lost/reduced function to restore function or to help with direct or indirect healing. Therefore, among the given options, 'Orthosis' is the correct answer. 'Prosthesis' refers to overcoming something with willpower, 'Artificial joint' is ... | An orthosis is a device that helps to restore function, directly or indirectly heal, or prevent deterioration in areas where the human body has structural defects or lost/reduced function through artificial apparatus or devices. It assists the body's functions to minimize discomfort in daily life and to restore functio... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 64 | 89 |
Which of the following radiation therapy devices is not an external beam therapy device? | Van de Graaff | Linac | Gamma knife units | Cyclotron | Gamma knife units are not external beam therapy devices but are stereotactic radiosurgery devices. | Gamma knife units are not external beam therapy devices but are stereotactic radiosurgery devices, which are used to deliver radiation precisely to brain tumors and other targets within the brain. Therefore, they are distinct from external beam therapy devices that deliver radiation from outside the body. | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 65 | 90 |
Which of the following is NOT a component of an anesthesia machine system? | Ventilator | Vaporizer | Condenser | Flowmeter | The anesthesia machine system performs functions such as anesthetic delivery, ventilation, control, and monitoring, but the condenser is not included in these functions. A condenser removes moisture from the air to maintain dry air, so it is not directly related to the anesthesia machine system. | An anesthesia machine system consists of components for the supply, control, and exhaust of anesthetics. The vaporizer evaporates the anesthetic for delivery, the ventilator ventilates the anesthetic for exhaust, and the flowmeter adjusts the supply of the anesthetic. However, a condenser does not convert the anestheti... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 66 | 91 |
Which mode of ventilation in mechanical ventilators delivers air in synchrony with the patient's ventilatory effort? | Controlled ventilation | Pressure support ventilation | Synchronized intermittent mandatory ventilation | Intermittent mandatory ventilation | Synchronized intermittent mandatory ventilation (SIMV) is a mode of mechanical ventilation that delivers air in synchrony with the patient's ventilatory effort. This mode supplies air in response to the patient's breathing, which helps maintain the naturalness of breathing. Additionally, it performs intermittent mandat... | Synchronized intermittent mandatory ventilation (SIMV) is a mode that delivers air in synchrony with the patient's ventilatory effort, where the ventilator detects the patient's breaths and supplies air in conjunction with those breaths. This mode maintains the naturalness of breathing by supplying air in response to t... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 67 | 92 |
Which respiratory function test assesses the ability of the lungs to distribute air evenly between alveoli? | Ventilation capacity | Distribution capacity | Exposure capacity | Diffusion capacity | Distribution capacity evaluates the function of the even distribution of air among the alveoli within the lungs. The other options are terms used to assess different functions of the respiratory system. | Distribution capacity evaluates the function of the even distribution of air among the alveoli within the lungs. This is one of the important indicators for assessing lung function and plays a crucial role in maintaining the efficient functioning of the lungs. The other options include ventilation capacity, which is th... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 68 | 93 |
In which case must a radiation worker receive radiation exposure dose measurement at least once a month? | When using elution media | When using radiation shielding facilities | When using film badges | When working at a radiation measurement agency | Film badges have the characteristic of turning black when exposed to radiation, which allows for a simple measurement of radiation exposure dose. Therefore, radiation workers often use film badges to measure their radiation exposure dose. | Film badges have the characteristic of turning black when exposed to radiation, allowing for the measurement of radiation exposure dose. Therefore, in cases where radiation workers need to receive a radiation exposure dose measurement at least once a month, they use film badges for this measurement. | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 69 | 94 |
What is the performance metric represented by the Modulation Transfer Function (MTF) in CT? | Linearity | Noise performance | Spatial resolution | Contrast | Spatial resolution is a measure of how small an area can be detected in a CT image. It is related to the resolution of the image, and the higher the resolution, the more finely small areas can be distinguished. Therefore, the higher the spatial resolution in a CT image, the more accurate the diagnosis can be. | In CT, the MTF is a performance indicator of spatial resolution. MTF is a function that shows how well the system responds to the input spatial frequencies, and spatial resolution refers to the smallest object size that the system can differentiate. Therefore, a higher MTF in CT means a higher spatial resolution, indic... | C | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 70 | 95 |
Which of the following is a common nonpolarizing electrode used in medical and biological experiments? | Stainless steel needle electrode | Gold electrode | Silver electrode | Silver-silver chloride electrode | The silver-silver chloride electrode is made of silver and silver chloride, and is widely used as a non-polarizable electrode. This electrode is highly stable and has rapid electrochemical reactions, which is why it is widely used in the medical and biological experimental fields. | The silver-silver chloride electrode has high stability and electrically stable characteristics, and can be safely used within the body, which is why it is commonly used for medical and biological experiments. Additionally, the large surface area of the electrode increases the accuracy of measurements, which is another... | D | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 71 | 96 |
Which tissue has the highest resistivity at a frequency of 100[Hz]? | Bone marrow | Fat | Liver | Blood | Fat has the lowest conductivity compared to other biological tissues. This is because fat has almost no ability to conduct electricity. Therefore, the response to electrical stimuli can be very weak or nonexistent. | As the frequency decreases, the electrical resistance increases, and fatty tissue has high electrical resistance, showing the highest resistivity at low frequencies. Therefore, at a frequency of 100[Hz], the tissue with the highest resistivity is 'Fat'. | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 72 | 97 |
Which type of electrode is designed in the form of a thin plate or membrane to increase contact with the curved surfaces of the body and to reduce the effects of movement by being easily bendable? | Flexible electrode | Adsorption electrode | Microelectrode | Redox electrode | The flexible electrode is designed in the form of a thin plate or membrane to increase contact with the curved surfaces of the body and to reduce the effects of movement by being easily bendable. Therefore, it is suitably used on the curved surfaces inside the body. | The flexible electrode is designed to increase contact with the curved surfaces of the body and to reduce the effects of movement by being easily bendable in the form of a thin plate or membrane. The other options have different characteristics. The adsorption electrode uses molecules attached to the surface to transfe... | A | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 73 | 98 |
What is the name of the brainwave with a frequency range of 8 to 13 Hz? | Theta wave | Alpha wave | Delta wave | Gamma wave | The name of the brainwave component with a frequency band of 8 ~ 13 Hz is 'Alpha wave'. This term is used to classify brainwave frequency bands, and it corresponds to brainwave frequencies between 8 ~ 13 Hz. Alpha waves are generally considered a mid-range frequency band of brainwaves and are observed when the brain is... | Alpha waves are brainwave patterns with a frequency range of 8~13Hz that are most active when a person is in an emotionally stable state. They are typically observed during meditation or rest, and because the frequency of the brainwaves is slow and the amplitude is large, they indicate a stable state. Therefore, in the... | B | Biomedical Engineering | test | test/biomedical_engineer_test.tsv | 74 | 99 |
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