ATI RN
Urinary System Mcq Questions Questions
Question 1 of 5
Major neuropeptides that promote Erectile function include all EXCEPT
Correct Answer: D
Rationale: Serotonin typically inhibits erection counteracts arousal, not a promoter. Dopamine enhances desire and erection (central). Oxytocin supports penile response (peripheral). Nitric oxide (NO) drives vasodilation key mediator. Serotonin's inhibitory role distinguishes it, critical for understanding erectile balance, unlike facilitatory neuropeptides.
Question 2 of 5
A 26 year female reports constant leakage of urine per vagina following an emergency caesarean section for foetal distress during labour. Her vitals are stable and physical examination reveals no abnormalities. Ultrasound demonstrates bilateral normal kidneys and bladder. The most likely diagnosis is
Correct Answer: D
Rationale: Vesicouterine fistula fits constant leakage post-C-section uterine incision injures bladder, leaking into uterus/vagina, less common but specific. Ureterovaginal shows flank pain kidneys normal here. Urethrovaginal is trauma-related vaginal delivery, not C-section. Vesicovaginal is commoner (obstructed labor), but uterine link post-C-section points elsewhere. Vesicouterine's surgical etiology distinguishes it, key to this scenario, unlike ureteral, urethral, or labor causes.
Question 3 of 5
The hallmark of bladder outlet obstruction is
Correct Answer: D
Rationale: Bladder outlet obstruction (BOO) shows high pressure, low flow on urodynamics effort against resistance (e.g., BPH). Low pressure/low flow suggests detrusor underactivity opposite. Incomplete emptying and high residuals are results, not hallmarks secondary. High pressure/low flow distinguishes BOO, key to its urodynamic signature, unlike underactivity or outcome-focused options.
Question 4 of 5
Stamped trial' is associated with
Correct Answer: A
Rationale: STAMPEDE' trial (Systemic Therapy in Advancing or Metastatic Prostate cancer) tests treatments (e.g., ADT + docetaxel) prostate-specific. Renal cell trials (e.g., CheckMate) focus immunotherapy distinct. Bladder cancer uses other protocols (e.g., BCG) unrelated. Prostate focus distinguishes STAMPEDE, key to its landmark status, unlike renal or bladder studies.
Question 5 of 5
All of the following prognostic models are suitable for localized renal cell carcinoma, Except:
Correct Answer: D
Rationale: MSKCC model predicts metastatic RCC survival post-nephrectomy, not localized. UISS, Leibovich, and VENUSS assess localized RCC recurrence stage, grade, size-based. MSKCC's metastatic focus distinguishes it, key to its exclusion for localized disease, unlike tailored prognostic tools.