ATI LPN
Test Questions Renal System Questions
Question 1 of 5
Which of the following happens as we descend deeper into the kidney medulla?
Correct Answer: B
Rationale: Medullary interstitial fluid concentration rises, aiding urine concentration.
Question 2 of 5
Which hormone causes an increase in permeability to water in the collecting ducts of the kidney?
Correct Answer: A
Rationale: ADH increases collecting duct water permeability via aquaporins.
Question 3 of 5
Complete the following sentence correctly. Atrial natriuretic peptide
Correct Answer: B
Rationale: ANP promotes sodium excretion to reduce blood volume.
Question 4 of 5
The gradient in osmotic concentration of the interstitial fluid in the medulla of the kidney is caused by:
Correct Answer: B
Rationale: Ascending limb pumps out Na+ and Cl-, creating gradient.
Question 5 of 5
Which gland is situated superior to the kidney?
Correct Answer: A
Rationale: Adrenal gland sits atop each kidney, producing hormones.