The hypothalamus regulates .

ATI LPN

ATI LPN Test Bank

The hypothalamus regulates ___________.

A. heart rate B. body temperature C. water balance D. all of the above

Correct Answer: D

Rationale: The hypothalamus controls heart rate, temperature, water balance, and glandular secretions.

Calcium plays an important role in __________.

A. neural conduction B. muscle contraction C. blood clotting D. all of the above

Correct Answer: D

Rationale: Calcium is critical for nerve signaling, muscle contraction, and clotting.

A person with Cushing syndrome has a tendency toward diabetes mellitus.

A. TRUE B. FALSE C. D.

Correct Answer: A

Rationale: Excess cortisol in Cushing syndrome can lead to glucose intolerance.

Anabolic steroids are ______ forms of testosterone.

A. natural B. synthetic C. super-active D. ineffective

Correct Answer: B

Rationale: Anabolic steroids are synthetic derivatives of testosterone.

Which of the following lab data would be consistent with primary hypothyroidism?

A. Increased T3 B. Increased serum calcium C. Low uptake of radioiodine D. Decreased level of thyroid stimulating hormone (TSH)

Correct Answer: C

Rationale: Primary hypothyroidism (thyroid failure) shows low thyroid hormone production, reducing radioiodine uptake, with elevated TSH.

$89/ 30 days

$150/ 90 days