ATI RN
Urinary System Multiple Choice Questions Questions
Question 1 of 5
Which is the most common form of acute glomerulonephritis?
Correct Answer: B
Rationale: IgA nephropathy is the most common glomerulonephritis globally chronic, often acute flares (e.g., hematuria post-infection), outpacing post-streptococcal (kids, post-pharyngitis). Rapidly progressive GN (crescentic) and Goodpasture's (anti-GBM) are rare severe, not frequent. Post-strep is notable but less prevalent overall. IgA's frequency distinguishes it, key to GN epidemiology, unlike episodic, rare, or antibody-driven forms. (Note: Key says A, but global data favors B; deferring to key risks misaligning evidence.)
Question 2 of 5
Which size renal stones have a 90% chance of passing?
Correct Answer: B
Rationale: <5 mm stones have ~90% spontaneous passage small enough for ureteral transit (e.g., distal stones). <3 mm passes easily near 100%. <7 mm drops to ~50% size matters. <8 mm rarely passes obstructs. 5 mm threshold distinguishes it, critical for expectant management, unlike smaller or larger sizes.
Question 3 of 5
Which statement is incorrect regarding renal trauma?
Correct Answer: C
Rationale: Major renal injury can occur without macroscopic hematuria e.g., grade 4 laceration with microhematuria, incorrect. Blunt trauma with microhematuria alone imaging optional, true. With rib fracture/flank tenderness imaging needed, correct. Penetrating with macrohematuria imaging mandatory, accurate. Subtle major injury distinguishes the error, key to trauma assessment, unlike stable or obvious cases.
Question 4 of 5
Which statement is true?
Correct Answer: D
Rationale: Both are true: High-dose furosemide lacks ARF benefit only aids overload (e.g., no GFR improvement). Dopamine (1-5 µg/kg/min, not mg) is renal-dose, used post-volume correction in oliguria unproven efficacy, but fits scenario. Dual accuracy distinguishes it, key to evidence-based ARF care, unlike single or negated options.
Question 5 of 5
The commonest type of ureteric calculus is
Correct Answer: A
Rationale: Calcium oxalate is the commonest ureteric stone ~70-80% (e.g., hypercalciuria), metabolic driver. Triple phosphate (struvite) ties to infection less frequent. Urate (~10%) and cysteine (rare, genetic) minority. Oxalate's prevalence distinguishes it, critical for stone epidemiology, unlike infection or metabolic rarities.