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.

[Q]: Question: A 60-year-old patient who came to the hospital's emergency department due to a left chest pain, cough and yellowish sputum, a temperature of 38.7C, a sensation of shortness of breath. Artificial saturation of 02 80%. Hemogram leukocytes 12000 / uL with 86% polymorphonuclear cells. Chest x-ray: alveolar infiltrate on the left base with air bronchogram. On suspicion of pneumonia, pneumococcal Ag is made in urine, which is positive and sputum culture is sent to the Microbiology service. Which empirical antibiotic treatment of the indicated ones is more correct in expectation of microbiological results?
Options: <0> Ceftazidime <1> Clarithromycin <2> Azithromycin <3> Ceftriaxone <4> Doxycycline
[A]: medicine

[Q]: 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.
[A]: chemistry

[Q]: Question: In a patient with asthma symptoms, diagnostic confirmation of the disease will be made first by:
Options: <0> The finding of a reversible obstruction of air flow in spirometry. <1> A positive allergic skin test. <2> An increase in the number of eosinophils in the induced sputum. <3> The elevation of nitric oxide in exhaled air (FENO). <4> The presence of a specific IgE in blood to an aeroallergen.
[A]:
medicine