Surgery MCQs Q4

A 35-year-old woman presents with involuntary leakage of urine that occurs with coughing and exertion. She reports no pain, hematuria, or history of urinary tract infections.

Which of the following is the primary investigation used to evaluate urinary incontinence in females?

A. Colposcopy

B. Colonoscopy

C. Cystoscopy

D. Ureteroscopy

E. Cystometry

✅ Correct Answer:

E. Cystometry.

🔍 Decoding the Stem

• 💡 CLUE 1: Clinical Presentation → Female with leakage on coughing/exertion (Stress Incontinence).
• 💡 CLUE 2: Absence of Red Flags → No hematuria or pain suggests a functional rather than structural issue.
• 💡 CLUE 3: Goal → Evaluation of incontinence requires a functional assessment of bladder pressure.

Why Cystometry is Correct

Cystometry is the gold standard urodynamic study. It measures bladder pressure, capacity, and compliance. It is essential to differentiate between stress incontinence and urge incontinence (detrusor overactivity) before initiating treatment.

Why Other Options Are Incorrect

A. Colposcopy: Used to examine the cervix and vagina, usually for cervical dysplasia.

C. Cystoscopy: A visual inspection of the bladder lining. It is useful for spotting tumors or stones but does not diagnose the cause of functional incontinence.

B & D: Colonoscopy (GI) and Ureteroscopy (Upper Urinary Tract) are not indicated for evaluating bladder storage issues.

🧠 High-Yield Points

First-line urodynamic test → Cystometry
Cystometry function → Measures bladder pressure vs. volume
Key distinction → Differentiates Stress vs. Urge incontinence

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💡 Quick Clinical Challenge:

During the cystometry of another patient, involuntary detrusor contractions are observed during the filling phase while the patient is trying to inhibit voiding.

Your Challenge:

1. What is the clinical name for this finding?
2. Which type of incontinence does this usually lead to?

Show Answer

✅ Answer:

1. Detrusor Overactivity (Hyperreflexia).
2. Urge Incontinence (Overactive Bladder).