TASK DEFINITION: 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'.
PROBLEM: Question: We want to study if Vitamin D can increase the incidence of breast cancer. In our area we have a population registry of cancer. To achieve our goal, all women diagnosed with breast cancer are selected from the register we have and each case pairs with two controls. What study design has been chosen? 
 Options:  <1> Prospective cohort study. <2> Cases and controls study. <3> Case-control study nested. <4> Retrospective cohort study. <5> Ecological study

SOLUTION: 3

PROBLEM: Question: Among the activities of the nurse for a patient with cognitive impairment secondary to Cerebral Vascular Accident, is NOT correct: 
 Options:  <1> Reorient the patient in terms of time, place and situation frequently. <2> Use verbal and auditory cues to guide the patient. <3> Repeat and reinforce instructions frequently. <4> Avoid showing family objects so as not to contribute to their frustration. <5> Use a simple language

SOLUTION: 4

PROBLEM: Question: The immersion oil used for microscopic observation: 
 Options:  <1> Protects the sample from the oxidizing effect of air. <2> Lubricate the objective lens. <3> Reduces refraction and increases resolution. <4> It acts as a lens that increases magnification. <5> Avoid dehydration of the preparation.

SOLUTION:
3