ATI LPN
Multiple Choice Questions on Urinary System Questions
Question 1 of 5
Which of the following is NOT a unit of the nephron?
Correct Answer: D
Rationale: The medullary papilla (D) is a renal pyramid
Question 2 of 5
A hospitalized patient who has possible renal insufficiency after coronary artery bypass surgery will have a creatinine clearance test. Which item will the nurse need to obtain?
Correct Answer: D
Rationale: Because creatinine clearance testing involves a 24-hour urine specimen, the nurse should obtain a large container for the urine collection. Catheterization, cleaning of the perineum with antiseptic towelettes, and a sterile specimen cup are not needed for this test.
Question 3 of 5
What is the structural and functional unit of the kidney?
Correct Answer: D
Rationale: The nephron (D) is the kidney's structural and functional unit, where urine formation occurs across its ~1 million units per kidney. The cortex (A) and medulla (B) are regions, and pyramids (C) are medullary structures, but only the nephron performs filtration, reabsorption, and secretion, making D the correct answer.
Question 4 of 5
The nurse contributes to the plan of care for a patient who has had radiological studies of the renal system and has a nursing diagnosis of Impaired Urinary Elimination. Which outcome indicates that the nursing interventions have been effective?
Correct Answer: D
Rationale: Voiding 35 mL/hour of clear urine (D) meets the >30 mL/hour goal, indicating effective interventions. Lower outputs (A, B) suggest impairment, and cloudy urine (C) may indicate infection, making D the successful outcome.
Question 5 of 5
A patient who has diabetic nephropathy asks the nurse Why am I using smaller doses of insulin than I used to? What would be the best explanation by the nurse?
Correct Answer: A
Rationale: As renal function decreases the patient needs smaller doses of insulin because the kidney normally degrades insulin.