Revalida (Brazil Medical Diploma Revalidation Exam) · Public Health and SUS

Epidemiology and the SUS

21 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 21 questions

  1. Which three doctrinal principles guide Brazil's SUS?
  2. Which article of the 1988 Constitution says health is a right of all and a duty of the State?
  3. Which law is the Organic Health Law that regulates the SUS?
  4. Law 8,142 of 1990 regulates what?
  5. Which are organisational guidelines of the SUS?
  6. In Brazil, which strategy organises primary care?
  7. What is incidence?
  8. What does sensitivity of a test measure?
  9. A test gives TP 90, FN 10, FP 50 and TN 850. What is the positive predictive value?
  10. Incidence is 20 per 1,000 in exposed and 5 per 1,000 in unexposed. What is the relative risk?
  11. A study compares past exposure in people with and without a rare disease. What is it and its measure?
  12. Which criteria guide whether a disease should be screened?
  13. How is the infant mortality rate expressed?
  14. A town had 30 deaths of infants under one year and 2,500 live births. What is the infant mortality rate?
  15. Which is an example of primary prevention?
  16. What does compulsory notification mean?
  17. A disease has a basic reproduction number R0 of 5. What is the approximate herd immunity threshold?
  18. Which disease requires immediate (24-hour) notification in Brazil?
  19. A drug reduces the event rate from 10 percent to 6 percent. What is the number needed to treat?
  20. A test has sensitivity 90 percent and specificity 94.4 percent. What is the positive likelihood ratio and what does it mean?
  21. In a cohort, 40 of 200 exposed and 40 of 800 unexposed people develop the disease. What is the attributable risk in the exposed?

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