What is a risk factor?

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Epidemiologic Question Questions

Question 1 of 5

A. An intervention that reduces the risk of disease B. A characteristic that increases the likelihood of developing a disease C. A treatment for a disease D. A measure of disease prevalence

Correct Answer: B

Rationale: Risk factor (B) increases disease likelihood (e.g., smoking). A is protective, C is treatment, D is measure.

Question 2 of 5

Correct statements about obesity include all the following EXCEPT

A. a woman whose body fat is equal to 24 percent of her total body weight should be considered obese B. obesity is the major risk factor for non-insulin-dependent diabetes mellitus C. sedentariness is the most important cause of widespread obesity in Western populations D. obesity is a risk factor for coronary heart disease only among the extremely obese

Correct Answer: A

Rationale: 24% body fat isn’t obese (threshold ~30-35%). B, C, D (partly true), and E are correct.

Question 3 of 5

Compared with the general population, all the following patients are at an increased risk of cobalamin (B12) deficiency EXCEPT

A. a 40-year-old man with a history of ingestion of lye at age 20 B. a 20-year-old woman with a history of Graves' disease C. a 60-year-old man with a brother with pernicious anemia D. a 70-year-old woman with a nematodal infection

Correct Answer: B

Rationale: Graves’ doesn’t affect B12; others do (e.g., malabsorption, genetics).

Question 4 of 5

Studies of the epidemiology of cutaneous drug reactions have shown which of the following?

A. The incidence of cutaneous drug reactions is highest in the elderly B. Urticaria is the most common skin manifestation C. Cutaneous drug reactions usually occur about 2 to 3 weeks following initial exposure D. The most common drugs involved are antihypertensive medications

Correct Answer: A

Rationale: Elderly have higher rates due to polypharmacy; B (rashes vary), C (timing varies), D (antibiotics lead) false.

Question 5 of 5

All the following statements about the relationship between marital status and cancer are true EXCEPT

A. the risk of cancer of the cervix is higher in married women compared with single women B. the risk of cancer of the cervix is lower in women who marry late in life than in women who marry earlier C. the risk of breast cancer is higher in single than in married women D. the risk of cancer of the testes is higher in married than in single men

Correct Answer: D

Rationale: Testicular cancer isn’t higher in married men; others align with data.

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What is a risk factor?

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ATI RN

ATI RN

Epidemiologic Question Questions

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