ATI LPN
Medical Surgical Endocrine Quiz Questions
Question 1 of 5
Calcitonin secretion is increased by:
Correct Answer: D
Rationale: Calcitonin secretion is stimulated by gastrin, CCK, secretin, and glucagon, all of which respond to high Ca2+ or digestive signals.
Question 2 of 5
Which is TRUE:
Correct Answer: D
Rationale: Gastrin promotes mucosal growth; G cells (not TG) secrete gastrin, secretin family includes CCK and VIP, G_{17} is principal, and G_{34} has a longer half-life.
Question 3 of 5
K^+ is actively reabsorbed from the GIT lumen in the:
Correct Answer: D
Rationale: K^+ is actively reabsorbed in the distal colon; most GIT segments secrete K^+ into the lumen.
Question 4 of 5
The nurse is caring for an 80-year-old patient with a history of type 2 diabetes and hypothyroidism. The physician wants to evaluate the patient's blood glucose levels and orders a fructosamine assay. Which factor best explains why the physician chose this test over other blood glucose tests?
Correct Answer: A
Rationale: Fructosamine measures glycated serum proteins, reflecting glucose control over 2-3 weeks, shorter than the 2-3 months of hemoglobin A1c, making it ideal for recent monitoring, especially in conditions like hypothyroidism that may affect A1c reliability.
Question 5 of 5
Which corticoid counteracts the inflammatory response?
Correct Answer: B
Rationale: Cortisol is the corticoid that counteracts the inflammatory process. Thyroxine is secreted by the thyroid gland. Insulin is secreted by the beta cells of the pancreas. It is responsible for regulation of blood glucose levels. Norepinephrine is secreted by the adrenal medulla in response to stimulation from the sympathetic nervous system. It functions as a pressor (causing blood vessel constriction) hormone to maintain blood pressure.