Assays of plasma gastrin levels are used for diagnosis

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Medical Surgical Endocrine ATI Questions

Question 1 of 5

Assays of plasma gastrin levels are used for diagnosis

Correct Answer: A

Rationale: Elevated plasma gastrin levels are a key diagnostic marker for Zollinger-Ellison syndrome, reflecting gastrinoma activity.

Question 2 of 5

Radioactive iodine uptake in excess of 50% is usually observed in the course of:

Correct Answer: D

Rationale: Thyrotoxicosis (e.g., Graves' disease) typically shows RAI uptake >50% due to increased thyroid activity.

Question 3 of 5

The blood sugar fails to rise normally during an oral glucose tolerance test in:

Correct Answer: A

Rationale: Sprue (celiac disease) impairs glucose absorption, flattening the OGTT curve; the others do not typically affect it this way.

Question 4 of 5

Common causes of stupor and coma include:

Correct Answer: D

Rationale: All listed causes "toxic, structural, infectious, and metabolic "can lead to stupor or coma.

Question 5 of 5

In hyperparathyroidism all of the following are seen except:

Correct Answer: B

Rationale: Hyperparathyroidism causes hyporeflexia (from hypercalcemia), not hyperreflexia; other findings are typical.

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