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: 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.
medicine

Question: The chemical reactions of the splicing process of the introns during the maturation of the pre-mRNAs consists of: 
 Options:  <0> An oxidation-reduction reaction. <1> A transesterification reaction. <2> Two sequential transesterification reactions. <3> Three sequential transesterification reactions. <4> A transesterification reaction followed by another oxidation reaction.
chemistry

Question: A 5-year-old boy with symptoms of possible meningitis is seen in an emergency department. Gram-negative diplococci and abundant polymorphonuclear leukocytes are observed in the Gram stain of the cerebrospinal fluid sediment. What microorganism does it suggest as a possible cause of the infection ?: 
 Options:  <0> Haemophilus influenzae. <1> Streptococcus pneumoniae <2> Streptococcus agalactiae. <3> Neisseria meningitidis. <4> Listeria monocytogenes.

pharmacology