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'.

Question: The denaturation of proteins: 
 Options:  <1> It is accompanied by the loss of their activity. <2> It supposes the rupture of peptide bonds. <3> It is always an irreversible process. <4> Alter its primary structure. <5> It is carried out by chaperone proteins.
1

Question: A patient with peripheral occlusive arteriopathy who presents intermittent claudication will be recommended: 
 Options:  <1> Absolute rest to reduce the demands of O2. <2> Elevate the legs to reduce pain. <3> Apply dry heat to the legs to promote vasodilation. <4> Walk on flat surfaces. <5> Use gradual compression stockings.
4

Question: According to the Code of Ethics, in their professional practice, the nurse / guarantor will guarantee and carry out a correct and adequate treatment for all the people who need it: 
 Options:  <1> Less in the assumptions of risks. <2> Regardless of your condition, age or circumstance. <3> Except in the case of patients legally declared dangerous. <4> But it can be exempted from its obligation only when dealing with infectious and contagious patients. <5> Except when the professional presents his objection in writing.

2