ATI LPN
ATI The Medical Surgical Endocrine Test Questions
Question 1 of 5
Insulin secretion is inhibited by:
Correct Answer: D
Rationale: Somatostatin inhibits insulin secretion from β cells. CCK, amino acids, glucagon, and glucose stimulate it.
Question 2 of 5
Which of the following substances decreases the activity of hormone-sensitive lipase:
Correct Answer: D
Rationale: Prostaglandin E inhibits hormone-sensitive lipase, reducing lipolysis, while adrenaline, thyroxine, and TSH stimulate it; serotonin has minimal direct effect.
Question 3 of 5
Regarding protein digestion and absorption, which is TRUE?
Correct Answer: D
Rationale: Most amino acids are absorbed via Na^+-dependent transporters in the gut lumen; pepsinogens need acid, and carboxy peptidases are distinct enzymes.
Question 4 of 5
Defective osteoclasts leads to:
Correct Answer: B
Rationale: Defective osteoclasts impair bone resorption, causing osteopetrosis (dense bones); other conditions involve different mechanisms.
Question 5 of 5
Which statement accurately describes endocrine glands?
Correct Answer: A
Rationale: Endocrine glands secrete directly into the bloodstream, whereas exocrine glands secrete via a duct.