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A patient with long-term asthma develops Cushing syndrome. What is the cause of this condition?

A.

Abruptly withdrawing cortisone therapy

B.

Poorly functioning adrenal glands

C.

Lacking ACTH, related to the pituitary gland

D.

Taking corticosteroids for many years

Answer and Explanation

The Correct Answer is D

Rationale:


A. Abruptly withdrawing corticosteroid therapy can lead to adrenal insufficiency, not Cushing syndrome.


B. Poorly functioning adrenal glands cause Addison’s disease, not Cushing syndrome.


C. Lacking ACTH leads to secondary adrenal insufficiency, not Cushing syndrome.


D. Taking corticosteroids for many years can result in exogenous Cushing syndrome due to prolonged exposure to high cortisol levels, which mimic the effects of endogenous Cushing syndrome.


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View Related questions

Correct Answer is A

Explanation

Rationale:

A. The classic symptoms of diabetes insipidus include polyuria (diuresis), which leads to dehydration and increased thirst as the body attempts to compensate for the fluid loss.

B. Stress incontinence, vomiting, and edema are not associated with diabetes insipidus; they are more relevant to other conditions.

C. Dizziness, hypertension, and excitability are not typical symptoms of DI and may indicate other medical conditions.

D. Bradycardia, insomnia, and muscle cramps are also not characteristic of diabetes insipidus and can be related to different health issues.

Correct Answer is D

Explanation

Rationale:

A. Hyperglycemia typically presents with polyuria, thirst, and blurred vision, rather than sweating and shakiness.

B. Diabetic ketoacidosis presents with symptoms like deep breathing (Kussmaul respirations), fruity breath, and confusion, not sweating and tachycardia.

C. Nephropathy does not cause these acute symptoms; it is a long-term complication involving kidney damage.

D. Hypoglycemia presents with symptoms such as sweating, tachycardia, shakiness, and lightheadedness, which match the client's presentation.

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