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General Surgery · Urology: posterior urethral injury
Sample itemAfter pelvic fracture, a patient has blood at the urethral meatus and cannot void. What should be done before attempting urethral catheterization?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Perform retrograde urethrography
Blood at the meatus after pelvic trauma suggests urethral injury. Retrograde urethrography should define urethral integrity before transurethral catheterization to avoid worsening a disruption.
Option by option
A. Discharge with fluid restriction
Fluid restriction is unsafe and irrelevant.
B. Give an oral diuretic
Diuretics do not evaluate or treat urethral trauma.
C. Perform retrograde urethrography (correct)
Correct. Imaging precedes urethral instrumentation when injury is suspected.
D. Insert a Foley catheter forcefully
Forceful catheterization can convert a partial injury to a complete disruption.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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