ATI LPN
PN Learning System Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
The adrenal ______ secretes a small amount of both sex hormones.
Correct Answer: B
Rationale: The adrenal cortex produces minor amounts of sex hormones like androgens.
Question 2 of 5
Melatonin is involved with circadian rhythms.
Correct Answer: A
Rationale: Melatonin helps synchronize the body's day-night cycle.
Question 3 of 5
Mr. Manning's serum calcium level is reported as a 5.9 mg/dL. What treatment should the nurse anticipate?
Correct Answer: B
Rationale: Severe hypocalcemia (<8 mg/dL) requires IV calcium (e.g., calcium gluconate) to rapidly correct and prevent complications like tetany.
Question 4 of 5
A 38-year-old man who has galactorrhea is found to have a prolactinoma. His physician treats him with bromocriptine, which eliminates the galactorrhea. The basis for the therapeutic action of bromocriptine is that it
Correct Answer: C
Rationale: Bromocriptine is a dopamine agonist. The secretion of prolactin by the anterior pituitary is tonically inhibited by the secretion of dopamine from the hypothalamus. Thus, a dopamine agonist acts just like dopamine "it inhibits prolactin secretion from the anterior pituitary.
Question 5 of 5
The specificity of hormones is due to
Correct Answer: D
Rationale: Hormone specificity arises from receptors on target cells that recognize specific hormone structures.