ATI LPN
PN Learning System Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 9
Myasthenia gravis is frequently associated with:
Correct Answer: A
Rationale: Thymomas are associated with myasthenia gravis in 8-10% of cases.
Question 2 of 9
The nurse is caring for a client who has adrenal insufficiency. Which of the following medications should the nurse expect to be prescribed for the client?
Correct Answer: D
Rationale: Prednisone replaces cortisol in adrenal insufficiency (e.g., Addison's).
Question 3 of 9
Melatonin is an antioxidant that
Correct Answer: B
Rationale: Melatonin neutralizes free radicals, protecting cells from oxidative damage.
Question 4 of 9
Which gland is the only gland that is both an endocrine gland and an exocrine gland?
Correct Answer: C
Rationale: The pancreas acts as an endocrine gland, secreting insulin directly into the bloodstream, and an exocrine gland, secreting digestive enzymes through ducts.
Question 5 of 9
Regarding calcium metabolism:
Correct Answer: D
Rationale: Chronic low Ca2+ triggers secondary hyperparathyroidism. High Ca2+ suppresses PTH and doesn't cause tetany (low Ca2+ does). ~99% of Ca2+ is in bones, and infant turnover is high but not precisely 80%.
Question 6 of 9
The specificity of hormones is due to
Correct Answer: D
Rationale: Hormone specificity arises from receptors on target cells that recognize specific hormone structures.
Question 7 of 9
Which assessment finding should the nurse recognize is an adverse CNS effect of mitotane (Lysodren)?
Correct Answer: D
Rationale: Confusion, depression, and dizziness are CNS side effects of mitotane.
Question 8 of 9
Bile duct obstruction
Correct Answer: A
Rationale: Bile duct obstruction elevates direct (conjugated) bilirubin on van den Bergh test.
Question 9 of 9
kuru
Correct Answer: D
Rationale: Kuru (prion disease) causes cerebellar ataxia.