Which of the following statements about emphysema

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Epidemiology Multiple Choice Questions Questions

Question 1 of 5

Which of the following statements about emphysema is true?

A. There is a definitive clinical diagnosis of the disease B. Cigarette smokers are twice as likely to develop the disease as nonsmokers C. Flow rates on pulmonary function tests resemble those seen in chronic bronchitis D. It is equally prevalent in light and heavy smokers

Correct Answer: C

Rationale: Emphysema shows obstructive flow rates like bronchitis; A (PFTs needed), B (10-20x risk), D (dose-dependent), E (silicosis, not emphysema) false.

Question 2 of 5

Although the etiology of adult rheumatoid arthritis is not known, studies of its epidemiology have shown that

A. the incidence is 20 times higher in women than in men B. progressive joint destruction occurs in less than 20 percent of cases C. the vast majority of cases have their onset between the ages of 35 and 50 D. there is no genetic predisposition to the disease

Correct Answer: C

Rationale: Peak onset 35-50; A (~3x), B (>20%), D (genetic link), E (no miner link) false.

Question 3 of 5

Exposure to benzene has been associated with all the following hematologic diseases EXCEPT

A. aplastic anemia B. non-Hodgkin lymphoma C. acute nonlymphocytic leukemia D. acute lymphocytic leukemia

Correct Answer: B

Rationale: NHL isn’t strongly linked; others are.

Question 4 of 5

True statements about pneumoconiosis of coal workers (black lung) include which of the following?

A. Progressive massive fibrosis occurs in more than half of coal workers who have pneumoconiosis B. Inhalation of anthracite (hard coal) dust is more dangerous than inhalation of bituminous (soft coal) dust C. Generally, large dust particles cause more scar formation than small dust particles D. None of the above

Correct Answer: D

Rationale: A (~10%), B (both risky), C (small worse), D (pure coal causes it) false.

Question 5 of 5

Which of the following statements about the statistics of suicide is correct?

A. Compared with other sex-race groups, the mortality from suicide is highest in black males of all ages B. The incidence of suicide attempts is higher in males than in females C. The risk of suicide increases for several months following divorce, separation, or death of the spouse D. Suicide rates do not correlate with socioeconomic status

Correct Answer: C

Rationale: Post-loss risk rises; A (white males), B (females higher attempts), D (correlates) false.

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Which of the following statements about emphysema is true?

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Epidemiology Multiple Choice Questions Questions

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