In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Q: Question: Friedel-Crafts alkylation reactions lead to products that: 
 Options:  <1> They facilitate diazotization reactions. <2> They facilitate the reactions of formation of ethers. <3> Activate the aromatic ring against other substitutions. <4> They deactivate the aromatic ring against other substitutions. <5> None of the above.

A: 3
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Q: Question: Amantadine is a drug that can be used as: 
 Options:  <1> Antiviral and antiparkinsonian. <2> Antipsychotic and antiemetic. <3> Anxiolytic and antifungal. <4> Antifungal and antiparkinsonian. <5> Antifungal and anti-migraine.

A: 1
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Q: Question: A 24-year-old woman is found lying on the street by some passers-by. When the emergency team arrived, they found it with an oxygen saturation of 88% breathing ambient air and a punctiform pupil examination. It is transferred to the nearest hospital emergency, where arterial blood gas analysis shows: pH 7.25, PaCO2 60 mmHg, PaO2 58 mmHg, bicarbonate of 26 mEq / L and excess of bases of -1. In blood sodium is 137 mEq / L and chloride 100 mEq / L. From a gasometric point of view, the patient has: 
 Options:  <1> Partial respiratory failure. <2> Metabolic acidosis. <3> Pure respiratory acidosis <4> Respiratory alkalosis due to lack of chlorine. <5> The gasometry can only be of venous blood.

A:
3
****