ATI RN
Urinary System Mcq Questions Questions
Question 1 of 5
Which of the following is a self-limiting diuretic?
Correct Answer: A
Rationale: Acetazolamide (carbonic anhydrase inhibitor) self-limits via acidosis, unlike furosemide, thiazide, or triamterene (sustained). This distinguishes diuretic pharmacology, critical for therapy duration, contrasting with persistent diuretics.
Question 2 of 5
Factor affecting G F R is:
Correct Answer: D
Rationale: GFR is influenced by renal blood flow, hydrostatic pressure, and ureteric obstruction (back pressure) all apply. This comprehensively affects filtration, critical for renal assessment, contrasting with single-factor views.
Question 3 of 5
In the presence of vasopressin, the greatest fraction of filtered water is absorbed in the:
Correct Answer: A
Rationale: PCT reabsorbs ~65-70% of water (obligatory), even with vasopressin not loop, DCT, or collecting duct (facultative). This quantifies water reabsorption, critical for fluid balance, contrasting with ADH-focused sites.
Question 4 of 5
The structure that connects a kidney to the urinary bladder is the
Correct Answer: A
Rationale: Ureter transports urine from kidney to bladder not urethra (bladder out), pelvis (inside), or duct (nephron). This identifies urine conduit, key for flow, contrasting with other structures.
Question 5 of 5
Which of the following is the proper sequence of structures in the nephron?
Correct Answer: C
Rationale: Nephron sequence: glomerulus → PCT → loop → DCT not other orders. This orders filtrate flow, key for processing, contrasting with missequences.