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: Question linked to image no. 5 A 41-year-old man referred for presenting for more than 5 years bilateral alternating gluteal pain predominantly nocturnal, which interferes with sleep and relieves with mobilization. It is accompanied by stiffness for more than 1 hour after inactivity. Denies pain, swelling or deformity to another level. It provides elementary analytics without alterations except PCR 11.5 mg / dl (N <5) and the attached radiograph. The objective radiological alteration and the most probable diagnosis would be: 
 Options:  <1> Fracture of Looser- Osteomalacia. <2> Bilateral sacroiliitis - Ankylosing spondylitis. <3> Coexistence of lytic and blastic lesions Paget's disease. <4> Blastic lesions - Prostatic adenocarcinoma with bone metastases. <5> Osteosclerosis - Lymphoma.

SOLUTION: 2

PROBLEM: Question: In relation to vaccines, indicate the correct option: 
 Options:  <1> The immunization schedule should be suspended during the summer months. <2> The vaccination calendar is fixed and immovable. <3> The appropriate storage temperature is between 2 and 8C. <4> Influenza vaccine should only be given to people older than 14 years. <5> All the previous answers are correct.

SOLUTION:
3