Repeated USMLE Questions- Pathology MCQs- 10

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Q- Which one of the following may precipitate to an acute porphyria attack?

A- High-carbohydrate diet

B- Low-carbohydrate diet

C- Mediterranean diet

D- Vegetarian diet

B- Low-carbohydrate diet- Low low-calorie, low-carbohydrate diet may precipitate to acute attack. In contrast, high high-carbohydrate diet may decrease the risk of an acute attack.



Q- Which one of the following conditions is characterized by high blood pressure, hypokalemia and elevated renal potassium?

A- Fanconi syndrome

B- Liddle syndrome

C- Tay-Sachs disease

D- Waardenburg syndrome

B- Liddle syndrome- It is a hereditary disease occurs early in life and known by severe hypertension in an early age.



Q- In a case of esophageal dysphagia, which one of the following is considered a mechanical obstruction versus a motility disorder?

A- Achalasia

B- Chagas disease

C- Diffuse esophageal spasm

D- Extrinsic compression

D- Extrinsic compression- caused by different abnormalities such as enlarged left atrium, aortic aneurysm or aberrant subclavian artery. Other choices are motility disorders.

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