ATI LPN
ATI Targeted Medical Surgical Endocrine Questions
Question 1 of 5
What inhibits gastrin secretion?
Correct Answer: B
Rationale: Secretin inhibits gastrin secretion to reduce acid production; atropine doesn't affect it, adrenaline may increase it.
Question 2 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.
Question 3 of 5
G-proteins (guanine nucleotide-binding proteins) are molecules involved in the transmission of hormonal signals from outside a cell to the interior by means of a process called:
Correct Answer: A
Rationale: Signal transduction is the process by which G-proteins relay hormonal signals from the cell surface to intracellular targets, converting an extracellular signal into a cellular response.
Question 4 of 5
The secretion of aldosterone follows a circadian rhythm and helps to regulate the way glucose is used by the body | The effects of adrenaline include increased respiration rate, increased heart rate and dilation of pupils
Correct Answer: D
Rationale: The Assertion (A) is FALSE; aldosterone regulates sodium and water, not glucose, though it follows a circadian rhythm. The Reason (R) is TRUE, as adrenaline causes these physiological effects. Thus, R is true, but A is false.
Question 5 of 5
The adrenal gland makes the hormone ___, whose function is stimulating sodium and water reabsorption in the distal tubules of nephrons in the kidney.
Correct Answer: C
Rationale: Aldosterone, from the adrenal cortex, promotes sodium and water reabsorption in the kidneys to regulate blood pressure and volume.