ATI LPN
Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
Blood levels of which of the following substances is decreased in Graves disease?
Correct Answer: D
Rationale: In Graves disease (hyperthyroidism), the thyroid is stimulated to produce and secrete vast quantities of thyroid hormones as a result of stimulation by thyroid-stimulating immunoglobulins (antibodies to the thyroid-stimulating hormone [TSH] receptors on the thyroid gland). Because of the high circulating levels of thyroid hormones, anterior pituitary secretion of TSH will be turned off (negative feedback).
Question 2 of 5
Peptide hormones
Correct Answer: B
Rationale: Peptide hormones are water-soluble and circulate mostly unbound.
Question 3 of 5
The effective plasma concentration of a hormone is normally regulated by appropriate adjustments in the hormone's rate of
Correct Answer: D
Rationale: Secretion rate is the primary regulatory mechanism for plasma hormone levels.
Question 4 of 5
Too little activity of a particular hormone can arise from
Correct Answer: D
Rationale: All listed factors can reduce hormone activity (e.g., gland failure, receptor defects).
Question 5 of 5
Select the incorrect association.
Correct Answer: A
Rationale: Vasopressin is from the posterior pituitary, not adrenal medulla.