In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
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Question: Question: Question linked to image nº4 70-year-old man, active smoker, who underwent a chest radiological study as a preoperative protocol for prostatic hypertrophy. What would be the fundamental semiological finding of this radiological image? 
 Options:  <0> Encapsulated left pleural effusion. <1> Tumor of the anterior soft tissues of the thorax. <2> Collapse of the left upper lobe. <3> Anterior mediastinal mass. <4> Elevation of the left diaphragmatic dome.

Answer: medicine


Question: Question: Point out the correct statement: 
 Options:  <0> At low pO2, myoglobin is more saturated with O2 than hemoglobin. <1> CO2 increases the affinity of hemoglobin for O2. <2> 2,3 Bisphosphoglycerate is strongly bound in oxygenated hemoglobin. <3> The tissues that produce lactate release more O 2. <4> At high pO2, hemoglobin has 2 subunits.

Answer: chemistry


Question: Question: In anorexia nervosa, and in relation to menstrual / reproductive function, which of the statements is true according to the DSM-IV-TR criteria? 
 Options:  <0> The existence of amenorrhea is a basic diagnostic criterion. <1> We do not consider that the amorrea is significant until the patient has presented it for at least one year. <2> The amorrea, when it exists, is always primary, never secondary. <3> Amorrhea is a characteristic of this disorder but not a basic diagnostic criterion. <4> Without the presence of amorrea, anorexia nervosa can be diagnosed.

Answer:
psychology