ATI LPN
Urinary System Multiple Choice Questions Questions
Question 1 of 5
Concerning water reabsorption by the proximal tubule:
Correct Answer: D
Rationale: Solute uptake and oncotic pressure drive water reabsorption (A), Na/H antiports facilitate sodium and water movement (B), and aquaporin-1 enables water flow (C). All are true—solutes and pressure pull water, Na/H links sodium to water, and aquaporins allow passage—making E (all are correct), reassigned as D, correct.
Question 2 of 5
What type of epithelium forms the lining of the urinary bladder? A) stratified squamous, B) transitional, C) simple ciliated columnar, D) simple cuboidal
Correct Answer: B
Rationale: The urinary bladder is lined with transitional epithelium (B), allowing stretch during filling. Stratified squamous (A) is in skin, ciliated columnar (C) in airways, and cuboidal (D) in tubules, making B the correct lining.
Question 3 of 5
While the kidneys process about 180 L of blood-derived fluids per day, the amount that actually leaves the body is:
Correct Answer: D
Rationale: Kidneys filter 180 L/day, but ~99% is reabsorbed, leaving ~1-2 L (1%, 1.8 L) (D) as urine. 90 L (A), 180 L (B), and 18 L (C) overestimate output, making D the accurate amount.
Question 4 of 5
The nurse determines that instruction regarding prevention of future urinary tract infections (UTIs) for a patient with cystitis has been effective when the patient states,
Correct Answer: D
Rationale: Frequent voiding every 3-4 hours (D) flushes bacteria from the bladder, preventing UTIs, showing effective teaching. Vaginal sprays (A) may irritate, a quart (B) is inadequate (~946 mL vs. 2000-3000 mL recommended), and soap pre-intercourse (C) is unnecessary, making D the best understanding.
Question 5 of 5
Two days after surgery for an ileal conduit, the patient will not look at the stoma or participate in care. The patient insists that no one but the ostomy nurse specialist care for the stoma. The nurse identifies a nursing diagnosis of
Correct Answer: B
Rationale: Avoidance of stoma care (B) suggests disturbed body image from the altered function. Anxiety (A) lacks lifestyle focus evidence, readiness (C) isn't indicated, and denial (D) is absent (patient acknowledges change), making B the diagnosis.