Diabetes insipidus is characterized by all but whi

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ATI LPN Test Bank

Diabetes insipidus is characterized by all but which of the following:

A. low specific gravity of the urine B. ingestion of large amount of fluid C. increased sweating D. hormone deficiency

Correct Answer: C

Rationale: Diabetes insipidus features dilute urine, polydipsia, and polyuria from ADH deficiency, not increased sweating.

All but one of the following are signs of the marfan's syndrome:

A. long & thin extremities B. inherited as a dominant trait C. aortic stenosis D.

Correct Answer: C

Rationale: Marfan syndrome features long extremities and autosomal dominant inheritance; aortic dilation, not stenosis, is typical.

The most common causes for panhypopituitarism in the adult include all, except:

A. chromophobe B. post-partum pituitary necrosis C. craniopharyngioma D. acromegaly in end stage

Correct Answer: D

Rationale: End-stage acromegaly does not typically cause panhypopituitarism; it results from GH excess, not deficiency.

Diazoxide

A. poor response to insulin at fat cell B. destruction of endogenous insulin C. inhibition of insulin release D. increased hepatic glycogenolysis

Correct Answer: C

Rationale: Diazoxide inhibits insulin release, raising blood glucose.

Of the following. Pellagra is due to deficiency of:

A. thiamine B. pantothenic acid C. riboflavin D. nicotinic acid (niacin)

Correct Answer: D

Rationale: Pellagra results from niacin (vitamin B3) deficiency, causing dermatitis, diarrhea, and dementia.

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