instruction:
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.
question:
Question: Aflatoxin B1 is a natural product that owes its toxicity to a product of its metabolism, very reactive, of the nature of: 
 Options:  <0> 1,2-Diol. <1> Quinonymine <2> Epoxide <3> Α, β-unsaturated carbonyl. <4> Radical hydroperoxide.
answer:
pharmacology


question:
Question: Among the rules of administration of Parenteral Nutrition, which is true: 
 Options:  <0> The route of administration of NP can be used to perform blood extractions. <1> The NP bag can be kept out of the refrigerator until it is administered. <2> The administration of other intravenous medications can be done through the same route as the NP. <3> The nutrient solution may be exposed to light. <4> The infusion will be done at a constant rate during the 24 hours.
answer:
nursery


question:
Question: In which patient would an urgent coronary angiography be performed? 
 Options:  <0> 66-year-old diabetic woman with a single episode of pain at rest and elevation of troponins. <1> A 77-year-old man admitted for two 30-minute episodes of pain with a decrease in the ST segment on the ECG during the episode of pain. <2> A 55-year-old man who, after a week of treatment with double antiaggregation, underwent an isotopic ergometry showing extensive ischemia in the anterior face. <3> A 65-year-old woman with pain at rest and positive clinical ergometry in the third stage of Bruce. <4> A 55-year-old patient admitted for chest pain and dyspnea saturating 80% despite the administration of oxygen and with an ECG with ST-segment depression in the anterolateral aspect that does not revert with the administration of intravenous nitroglycerin.
answer:

medicine