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: 84-year-old man with severe respiratory failure secondary to carcinomatous lymphangitis associated with gastric cancer. A companion of his service has begun, that same day, treatment with oral morphine 10 mg / 4 hours. The patient is restless, at 34 breaths per minute, O2 saturation is 80% with an FiO2 of 28%. What should his attitude be? 
 Options:  <1> Withdraw treatment because it may worsen respiratory failure. <2> Increase the doses up to 20 mg / 4 hours according to evolution. <3> Increase oxygen flow to 35%. <4> Change the treatment of morphine by scopolamine. <5> To add to a treatment of a risperidon.
[A]: 2


[Q]: Question: In patients with Chronic Obstructive Pulmonary Disease, which treatments listed below are contraindicated due to the effect they cause: 
 Options:  <1> Bronchodilators, both short and long acting. <2> Mucolytics and expectorants to reduce the viscosity of secretions. <3> Oxygen that in the long term reduces the mortality of the patient with COPD. <4> Respiratory depressants such as opioids and barbiturates. <5> Antibiotics for patients with repeated pulmonary infections.
[A]: 4


[Q]: Question: How are the proteins involved in the DNA curl and compaction called ?: 
 Options:  <1> Kinases <2> Topoisomerases <3> Histones. <4> Phosphatases <5> DNA nucleases
[A]:
3