ATI LPN
PN Learning System Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
Which class of hormones are polar and, accordingly, hydrophilic?
Correct Answer: D
Rationale: Peptides (e.g., insulin) and catecholamines (e.g., epinephrine) are polar and water-soluble.
Question 2 of 5
Which statement is not correct?
Correct Answer: B
Rationale: Hormone secretion adjusts dynamically, not at a constant rate, to maintain homeostasis.
Question 3 of 5
Melatonin is an antioxidant that
Correct Answer: B
Rationale: Melatonin neutralizes free radicals, protecting cells from oxidative damage.
Question 4 of 5
Which statement regarding vasopressin is incorrect?
Correct Answer: B
Rationale: Oxytocin, not vasopressin, stimulates uterine contractions.
Question 5 of 5
is the hypothalamic hormone that causes the anterior pituitary to release thus, resulting in thyroid hormone release.
Correct Answer: C
Rationale: TRH stimulates TSH release, leading to thyroid hormone production.