fenil210/Med-Lamma huggingface dataset:
What causes ARDS ?
Many conditions or factors can directly or indirectly injure the lungs and lead to ARDS. Some common ones are:
                
Sepsis. This is a condition in which bacteria infect the bloodstream.
                
Pneumonia. This is an infection in the lungs.
                
Severe bleeding caused by an injury to the body.
                
An injury to the chest or head, like a severe blow.
                
Breathing in harmful fumes or smoke.
                
Inhaling vomited stomach contents from the mouth.
                
It's not clear why some very sick or seriously injured people develop ARDS and others don't. Researchers are trying to find out why ARDS develops and how to prevent it. + NHLBI + ARDS
Who is at risk for ARDS? ?
People at risk for ARDS have a condition or illness that can directly or indirectly injure their lungs.
                
Direct Lung Injury
                
Conditions that can directly injure the lungs include:
                
Pneumonia. This is an infection in the lungs.
                
Breathing in harmful fumes or smoke.
                
Inhaling vomited stomach contents from the mouth.
                
Using a ventilator. This is a machine that helps people breathe; rarely, it can injure the lungs.
                
Nearly drowning.
                
Indirect Lung Injury
                
Conditions that can indirectly injure the lungs include:
                
Sepsis. This is a condition in which bacteria infect the bloodstream.
                
Severe bleeding caused by an injury to the body or having many blood transfusions.
                
An injury to the chest or head, such as a severe blow.
                
Pancreatitis (PAN-kre-a-TI-tis). This is a condition in which the pancreas becomes irritated or infected. The pancreas is a gland that releases enzymes and hormones.
                
Fat embolism (EM-bo-lizm). This is a condition in which fat blocks an artery. A physical injury, like a broken bone, can lead to a fat embolism.
                
Drug reaction. + NHLBI + ARDS
What are the symptoms of ARDS ?
The first signs and symptoms of ARDS are feeling like you can't get enough air into your lungs, rapid breathing, and a low blood oxygen level.
                
Other signs and symptoms depend on the cause of ARDS. They may occur before ARDS develops. For example, if pneumonia is causing ARDS, you may have a cough and fever before you feel short of breath.
                
Sometimes people who have ARDS develop signs and symptoms such as low blood pressure, confusion, and extreme tiredness. This may mean that the body's organs, such as the kidneys and heart, aren't getting enough oxygen-rich blood.
                
People who develop ARDS often are in the hospital for other serious health problems. Rarely, people who aren't hospitalized have health problems that lead to ARDS, such as severe pneumonia.
                
If you have trouble breathing, call your doctor right away. If you have severe shortness of breath, call 911.
                
Complications From ARDS
                
If you have ARDS, you can develop other medical problems while in the hospital. The most common problems are: 
                
Infections. Being in the hospital and lying down for a long time can put you at risk for infections, such as pneumonia. Being on a ventilator also puts you at higher risk for infections.
                
A pneumothorax (collapsed lung). This is a condition in which air or gas collects in the space around the lungs. This can cause one or both lungs to collapse. The air pressure from a ventilator can cause this condition.
                
Lung scarring. ARDS causes the lungs to become stiff (scarred). It also makes it hard for the lungs to expand and fill with air. Being on a ventilator also can cause lung scarring.
                
Blood clots. Lying down for long periods can cause blood clots to form in your body. A blood clot that forms in a vein deep in your body is called a deep vein thrombosis. This type of blood clot can break off, travel through the bloodstream to the lungs, and block blood flow. This condition is called pulmonary embolism. + NHLBI + ARDS
How to diagnose ARDS ?
Your doctor will diagnose ARDS based on your medical history, a physical exam, and test results.
                
Medical History
                
Your doctor will ask whether you have or have recently had conditions that could lead to ARDS. For a list of these conditions, go to "Who Is at Risk for ARDS?"
                
Your doctor also will ask whether you have heart problems, such as heart failure. Heart failure can cause fluid to build up in your lungs.
                
Physical Exam
                
ARDS may cause abnormal breathing sounds, such as crackling. Your doctor will listen to your lungs with a stethoscope to hear these sounds.
                
He or she also will listen to your heart and look for signs of extra fluid in other parts of your body. Extra fluid may mean you have heart or kidney problems.
                
Your doctor will look for a bluish color on your skin and lips. A bluish color means your blood has a low level of oxygen. This is a possible sign of ARDS.
                
Diagnostic Tests
                
You may have ARDS or another condition that causes similar symptoms. To find out, your doctor may recommend one or more of the following tests.
                
Initial Tests
                
The first tests done are:
                
An arterial blood gas test. This blood test measures the oxygen level in your blood using a sample of blood taken from an artery. A low blood oxygen level might be a sign of ARDS.
                
Chest x ray. This test creates pictures of the structures in your chest, such as your heart, lungs, and blood vessels. A chest x ray can show whether you have extra fluid in your lungs.
                
Blood tests, such as a complete blood count, blood chemistries, and blood cultures. These tests help find the cause of ARDS, such as an infection.
                
A sputum culture. This test is used to study the spit you've coughed up from your lungs. A sputum culture can help find the cause of an infection.
                
Other Tests
                
Other tests used to diagnose ARDS include:
                
Chest computed tomography (to-MOG-rah-fee) scan, or chest CT scan. This test uses a computer to create detailed pictures of your lungs. A chest CT scan may show lung problems, such as fluid in the lungs, signs of pneumonia, or a tumor.
                
Heart tests that look for signs of heart failure. Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs. This condition can cause fluid to build up in your lungs. + NHLBI + ARDS
What is (are) Narcolepsy ?
Narcolepsy (NAR-ko-lep-se) is a disorder that causes periods of extreme daytime sleepiness. The disorder also may cause muscle weakness.
                
Most people who have narcolepsy have trouble sleeping at night. Some people who have the disorder fall asleep suddenly, even if they're in the middle of talking, eating, or another activity.
                
Narcolepsy also can cause:
                
Cataplexy (KAT-ah-plek-se). This condition causes a sudden loss of muscle tone while you're awake. Muscle weakness can affect certain parts of your body or your whole body. For example, if cataplexy affects your hand, you may drop what you're holding. Strong emotions often trigger this weakness. It may last seconds or minutes.
                
Hallucinations (ha-lu-sih-NA-shuns). These vivid dreams occur while falling asleep or waking up.
                
Sleep paralysis (pah-RAL-ih-sis). This condition prevents you from moving or speaking while waking up and sometimes while falling asleep. Sleep paralysis usually goes away within a few minutes.
                
Overview
                
The two main phases of sleep are nonrapid eye movement (NREM) and rapid eye movement (REM). Most people are in the NREM phase when they first fall asleep. After about 90 minutes of sleep, most people go from NREM to REM sleep.
                
Dreaming occurs during the REM phase of sleep. During REM, your muscles normally become limp. This prevents you from acting out your dreams. (For more information about sleep cycles, go to the National Heart, Lung, and Blood Institute's "Your Guide to Healthy Sleep.")
                
People who have narcolepsy often fall into REM sleep quickly and wake up directly from it. As a result, they may have vivid dreams while falling asleep and waking up.
                
Hypocretin (hi-po-KREET-in), a chemical in the brain, helps promote wakefulness. Most people who have narcolepsy have low levels of this chemical. What causes these low levels isn't well understood.
                
Researchers think that certain factors may work together to cause a lack of hypocretin. These factors may include heredity, infections, brain injuries, and autoimmune disorders. (Autoimmune disorders occur if the body's immune system mistakenly attacks the body's cells and tissues.)
                
Outlook
                
Narcolepsy symptoms usually begin during the teen or young adult years. People who have narcolepsy may find it hard to function at school, work, home, and in social situations because of extreme tiredness.
                
Narcolepsy has no cure, but medicines, lifestyle changes, and other therapies can improve symptoms. Research is ongoing on the causes of narcolepsy and new ways to treat it. + NHLBI + Narcolepsy
What causes Narcolepsy ?
Most people who have narcolepsy have low levels of hypocretin. This is a chemical in the brain that helps promote wakefulness. What causes low hypocretin levels isn't well understood.
                
Researchers think that certain factors may work together to cause a lack of hypocretin. These factors may include:
                
Heredity. Some people may inherit a gene that affects hypocretin. Up to 10 percent of people who have narcolepsy report having a relative who has the same symptoms.
                
Infections.
                
Brain injuries caused by conditions such as brain tumors, strokes, or trauma (for example, car accidents or military-related wounds).
                
Autoimmune disorders. With these disorders, the body's immune system mistakenly attacks the body's cells and tissues. An example of an autoimmune disorder is rheumatoid arthritis.
                
Low levels of histamine, a substance in the blood that promotes wakefulness.
                
Some research suggests that environmental toxins may play a role in triggering narcolepsy. Toxins may include heavy metals, pesticides and weed killers, and secondhand smoke.
                
Heredity alone doesn't cause narcolepsy. You also must have at least one other factor, such as one of those listed above, to develop narcolepsy. + NHLBI + Narcolepsy
Who is at risk for Narcolepsy? ?
Narcolepsy affects men and women. Symptoms usually begin during the teen or young adult years. The disorder also can develop later in life or in children, but it's rare before age 5.
                
Researchers think that certain factors may work together to cause narcolepsy. If these factors affect you, you may be at higher risk for the disorder. (For more information, go to "What Causes Narcolepsy?") + NHLBI + Narcolepsy
What are the treatments for Narcolepsy ?
Narcolepsy has no cure. However, medicines, lifestyle changes, and other therapies can relieve many of its symptoms. Treatment for narcolepsy is based on the type of symptoms you have and how severe they are.
                
Not all medicines and lifestyle changes work for everyone. It may take weeks to months for you and your doctor to find the best treatment.
                
Medicines
                
You may need one or more medicines to treat narcolepsy symptoms. These may include:
                
Stimulants to ease daytime sleepiness and raise your alertness.
                
A medicine that helps make up for the low levels of hypocretin in your brain. (Hypocretin is a chemical that helps promote wakefulness.) This medicine helps you stay awake during the day and sleep at night. It doesn't always completely relieve daytime sleepiness, so your doctor may tell you to take it with a stimulant.
                
Medicines that help you sleep at night.
                
Medicines used to treat depression. These medicines also help prevent cataplexy, hallucinations, and sleep paralysis.
                
Some prescription and over-the-counter medicines can interfere with your sleep. Ask your doctor about these medicines and how to avoid them, if possible. For example, your doctor may advise you to avoid antihistamines. These medicines suppress the action of histamine, a substance in the blood that promotes wakefulness.
                
If you take regular naps when you feel sleepy, you may need less medicine to stay awake.
                
Lifestyle Changes
                
Lifestyle changes also may help relieve some narcolepsy symptoms. You can take steps to make it easier to fall asleep at night and stay asleep.
                
Follow a regular sleep schedule. Go to bed and wake up at the same time every day.
                
Do something relaxing before bedtime, such as taking a warm bath.
                
Keep your bedroom or sleep area quiet, comfortable, dark, and free from distractions, such as a TV or computer.
                
Allow yourself about 20 minutes to fall asleep or fall back asleep after waking up. After that, get up and do something relaxing (like reading) until you get sleepy.
                
Certain activities, foods, and drinks before bedtime can keep you awake. Try to follow these guidelines:
                
Exercise regularly, but not within 3 hours of bedtime.
                
Avoid tobacco, alcohol, chocolate, and drinks that contain caffeine for several hours before bedtime.
                
Avoid large meals and beverages just before bedtime.
                
Avoid bright lights before bedtime.
                
For more tips on sleeping better, go to the National Heart, Lung, and Blood Institute's "Your Guide to Healthy Sleep."
                
Other Therapies
                
Light therapy may help you keep a regular sleep and wake schedule. For this type of therapy, you sit in front of a light box, which has special lights, for 10 to 30 minutes. This therapy can help you feel less sleepy in the morning. + NHLBI + Narcolepsy
What is (are) Bronchitis ?
Espaol
                
Bronchitis (bron-KI-tis) is a condition in which the bronchial tubes become inflamed. These tubes carry air to your lungs. (For more information about the bronchial tubes and airways, go to the Diseases and Conditions Index How the Lungs Work article.)
                
People who have bronchitis often have a cough that brings up mucus. Mucus is a slimy substance made by the lining of the bronchial tubes. Bronchitis also may cause wheezing (a whistling or squeaky sound when you breathe), chest pain or discomfort, a low fever, and shortness of breath.
                
Bronchitis
                

                
Overview
                
The two main types of bronchitis are acute (short term) and chronic (ongoing).
                
Acute Bronchitis
                
Infections or lung irritants cause acute bronchitis. The same viruses that cause colds and the flu are the most common cause of acute bronchitis. These viruses are spread through the air when people cough. They also are spread through physical contact (for example, on hands that have not been washed).
                
Sometimes bacteria cause acute bronchitis.
                
Acute bronchitis lasts from a few days to 10 days. However, coughing may last for several weeks after the infection is gone.
                
Several factors increase your risk for acute bronchitis. Examples include exposure to tobacco smoke (including secondhand smoke), dust, fumes, vapors, and air pollution. Avoiding these lung irritants as much as possible can help lower your risk for acute bronchitis.
                
Most cases of acute bronchitis go away within a few days. If you think you have acute bronchitis, see your doctor. He or she will want to rule out other, more serious health conditions that require medical care.
                
Chronic Bronchitis
                
Chronic bronchitis is an ongoing, serious condition. It occurs if the lining of the bronchial tubes is constantly irritated and inflamed, causing a long-term cough with mucus. Smoking is the main cause of chronic bronchitis.
                
Viruses or bacteria can easily infect the irritated bronchial tubes. If this happens, the condition worsens and lasts longer. As a result, people who have chronic bronchitis have periods when symptoms get much worse than usual.
                
Chronic bronchitis is a serious, long-term medical condition. Early diagnosis and treatment, combined with quitting smoking and avoiding secondhand smoke, can improve quality of life. The chance of complete recovery is low for people who have severe chronic bronchitis. + NHLBI + Bronchitis
What causes Bronchitis ?
Acute Bronchitis
                
Infections or lung irritants cause acute bronchitis. The same viruses that cause colds and the flu are the most common cause of acute bronchitis. Sometimes bacteria can cause the condition.
                
Certain substances can irritate your lungs and airways and raise your risk for acute bronchitis. For example, inhaling or being exposed to tobacco smoke, dust, fumes, vapors, or air pollution raises your risk for the condition. These lung irritants also can make symptoms worse.
                
Being exposed to a high level of dust or fumes, such as from an explosion or a big fire, also may lead to acute bronchitis.
                
Chronic Bronchitis
                
Repeatedly breathing in fumes that irritate and damage lung and airway tissues causes chronic bronchitis. Smoking is the major cause of the condition.
                
Breathing in air pollution and dust or fumes from the environment or workplace also can lead to chronic bronchitis.
                
People who have chronic bronchitis go through periods when symptoms become much worse than usual. During these times, they also may have acute viral or bacterial bronchitis. + NHLBI + Bronchitis
Who is at risk for Bronchitis? ?
Bronchitis is a very common condition. Millions of cases occur every year.
                
Elderly people, infants, and young children are at higher risk for acute bronchitis than people in other age groups.
                
People of all ages can develop chronic bronchitis, but it occurs more often in people who are older than 45. Also, many adults who develop chronic bronchitis are smokers. Women are more than twice as likely as men to be diagnosed with chronic bronchitis.
                
Smoking and having an existing lung disease greatly increase your risk for bronchitis. Contact with dust, chemical fumes, and vapors from certain jobs also increases your risk for the condition. Examples include jobs in coal mining, textile manufacturing, grain handling, and livestock farming.
                
Air pollution, infections, and allergies can worsen the symptoms of chronic bronchitis, especially if you smoke. + NHLBI + Bronchitis
What are the symptoms of Bronchitis ?
Acute Bronchitis
                
Acute bronchitis caused by an infection usually develops after you already have a cold or the flu. Symptoms of a cold or the flu include sore throat, fatigue (tiredness), fever, body aches, stuffy or runny nose, vomiting, and diarrhea.
                
The main symptom of acute bronchitis is a persistent cough, which may last 10 to 20 days. The cough may produce clear mucus (a slimy substance). If the mucus is yellow or green, you may have a bacterial infection as well. Even after the infection clears up, you may still have a dry cough for days or weeks.
                
Other symptoms of acute bronchitis include wheezing (a whistling or squeaky sound when you breathe), low fever, and chest tightness or pain.
                
If your acute bronchitis is severe, you also may have shortness of breath, especially with physical activity.
                
Chronic Bronchitis
                
The signs and symptoms of chronic bronchitis include coughing, wheezing, and chest discomfort. The coughing may produce large amounts of mucus. This type of cough often is called a smoker's cough. + NHLBI + Bronchitis
How to diagnose Bronchitis ?
Your doctor usually will diagnose bronchitis based on your signs and symptoms. He or she may ask questions about your cough, such as how long you've had it, what you're coughing up, and how much you cough.
                
Your doctor also will likely ask:
                
About your medical history
                
Whether you've recently had a cold or the flu
                
Whether you smoke or spend time around others who smoke
                
Whether you've been exposed to dust, fumes, vapors, or air pollution
                
Your doctor will use a stethoscope to listen for wheezing (a whistling or squeaky sound when you breathe) or other abnormal sounds in your lungs. He or she also may:
                
Look at your mucus to see whether you have a bacterial infection
                
Test the oxygen levels in your blood using a sensor attached to your fingertip or toe
                
Recommend a chest x ray, lung function tests, or blood tests + NHLBI + Bronchitis
What are the treatments for Bronchitis ?
The main goals of treating acute and chronic bronchitis are to relieve symptoms and make breathing easier.
                
If you have acute bronchitis, your doctor may recommend rest, plenty of fluids, and aspirin (for adults) or acetaminophen to treat fever.
                
Antibiotics usually aren't prescribed for acute bronchitis. This is because they don't work against virusesthe most common cause of acute bronchitis. However, if your doctor thinks you have a bacterial infection, he or she may prescribe antibiotics.
                
A humidifier or steam can help loosen mucus and relieve wheezing and limited air flow. If your bronchitis causes wheezing, you may need an inhaled medicine to open your airways. You take this medicine using an inhaler. This device allows the medicine to go straight to your lungs.
                
Your doctor also may prescribe medicines to relieve or reduce your cough and treat your inflamed airways (especially if your cough persists).
                
If you have chronic bronchitis and also have been diagnosed with COPD (chronic obstructive pulmonary disease), you may need medicines to open your airways and help clear away mucus. These medicines include bronchodilators (inhaled) and steroids (inhaled or pill form).
                
If you have chronic bronchitis, your doctor may prescribe oxygen therapy. This treatment can help you breathe easier, and it provides your body with needed oxygen.
                
One of the best ways to treat acute and chronic bronchitis is to remove the source of irritation and damage to your lungs. If you smoke, it's very important to quit.
                
Talk with your doctor about programs and products that can help you quit smoking. Try to avoid secondhand smoke and other lung irritants, such as dust, fumes, vapors, and air pollution.
                
For more information about how to quit smoking, go to the Diseases and Conditions Index Smoking and Your Heart article and the National Heart, Lung, and Blood Institute's "Your Guide to a Healthy Heart." Although these resources focus on heart health, they include general information about how to quit smoking. + NHLBI + Bronchitis