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: The limitation of the therapeutic effort refers to: 
 Options:  <1> Palliative sedation <2> Assisted suicide. <3> To the rejection to the treatment. <4> To the non-therapeutic fierceness. <5> To double effect therapy.
[A]: 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 the path that leads in the liver to acetoacetate biosynthesis from acetyl CoA, which of the following substances is the immediate precursor of acetoacetate? 
 Options:  <1> 3-Hydroxybutyrate <2> Acetoacetyl CoA. <3> 3-Hydroxybutyrate CoA. <4> Mevalonic acid. <5> 3-Hydroxy-3-methylglutaryl. CoA.
[A]:
5