Which of the following epidemiologic statements ab

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Epidemiology NCLEX Questions Questions

Question 1 of 5

Which of the following epidemiologic statements about gastric cancer is true?

A. The incidence of gastric cancer is higher in Japan than in the U.S. B. Annual mortality for gastric cancer has been increasing over the last 40 years in the U.S. C. The incidence of gastric cancer is higher in smokers D. The incidence in women is twice that in men

Correct Answer: A

Rationale: Japan has higher rates (diet, H. pylori); others false.

Question 2 of 5

Primary hepatocellular carcinoma (hepatoma) is

A. more common in persons with chronic liver disease B. associated with the consumption of raw meat C. responsible for 2 to 4 percent of all deaths from cancer in Africa D. associated with cigarette smoking

Correct Answer: A

Rationale: Chronic liver disease (e.g., HBV, HCV) is key; others false.

Question 3 of 5

True statements about osteoarthritis (degenerative joint disease) include

A. it is more than twice as common among women as men of the same age B. the pattern of joint involvement is essentially identical in all races among persons of the same age C. about 50 percent of persons over age 75 have some degenerative joint disease D. hereditary factors are important in Heberden's nodes

Correct Answer: C

Rationale: ~50% over 75 have OA; A (slightly higher), B (varies), D (true but not sole) false.

Question 4 of 5

The development of neuropathic symptoms is associated with chronic exposure to all the following substances EXCEPT

A. mercury B. lead C. arsenic D. sulfur dioxide

Correct Answer: D

Rationale: SO2 affects lungs, not nerves; others do.

Question 5 of 5

Based on studies of persons who have been poisoned by chronic exposure, methyl mercury has biologic properties that include an ability to

A. cause atrophy of the cells of the cerebellum and cerebral cortex B. accumulate primarily in the liver and kidneys C. cause restrictive lung disease D. be eliminated from body tissues mostly by the kidney

Correct Answer: A

Rationale: Neurotoxicity (e.g., Minamata disease) is key.

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Which of the following epidemiologic statements about gastric cancer is true?

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Epidemiology NCLEX Questions Questions

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