ATI LPN
Urinary System Questions Questions
Question 1 of 5
The nurse is caring for a patient with a history of systemic lupus erythematosus who has been recently diagnosed with end-stage kidney disease (ESKD). The patient has an elevated phosphorus level and has been prescribed calcium acetate to bind the phosphorus. The nurse should teach the patient to take the prescribed phosphorus-binding medication at what time?
Correct Answer: D
Rationale: Both calcium carbonate and calcium acetate are medications that bind with the phosphate and assist in excreting the phosphate from the body, in turn lowering the phosphate levels. Phosphate-binding medications must be administered with food to be effective.
Question 2 of 5
The nurse reinforces teaching on the most serious side effect of peritoneal dialysis. Which statement indicates understanding?
Correct Answer: C
Rationale: Peritonitis is a life-threatening complication of peritoneal dialysis.
Question 3 of 5
Granular (juxtaglomerular cells) secrete ___ when there is a fall in ___ ion concentration.
Correct Answer: D
Rationale: Juxtaglomerular cells secrete renin (D) when sodium falls in the distal tubule, detected by the macula densa, activating RAAS. Chloride (A) is secondary, carbonic anhydrase (B) and ATPase (C) are unrelated, making D the trigger.
Question 4 of 5
Place the following in the correct sequence from the initial formation of urine to its elimination from the body: 1) Major calyx, 2) Minor calyx, 3) Nephron, 4) Urethra, 5) Ureter, 6) Collecting duct
Correct Answer: A
Rationale: Urine forms in the nephron (3), flows to the collecting duct (6), minor calyx (2), major calyx (1), ureter (5), and urethra (4) (A). This sequence (3,6,2,1,5,4) traces filtrate from filtration to excretion, making A correct.
Question 5 of 5
A nurse assesses a client with renal insufficiency and a low red blood cell count. The client asks, 'Is my anemia related to the renal insufficiency?' How should the nurse respond?
Correct Answer: C
Rationale: Kidneys produce erythropoietin to stimulate red blood cell production, linking anemia to renal insufficiency.