Question

Which of the following findings is most suggestive of urethral injury?

• A. Blood at meatus
• B. High riding prostate
• C. Urinary retention
• D. Scrotal hematoma

Hint:

Never insert a Foley catheter in a trauma patient presenting with blood at the meatus. Always perform a Retrograde Urethrogram (RUG) first to evaluate the integrity of the urethra.

Answer 1

The Correct Option is A

Concept:
The clinician needs to identify the clinical sign that is considered the most reliable, singular hallmark of a traumatic urethral injury following severe pelvic or perineal trauma.
Recognizing this sign is critical because it fundamentally alters the immediate management regarding urinary catheterization.
Explanation:
• Urethral injuries predominantly occur in males following severe blunt pelvic trauma (which typically causes posterior urethral injuries at the membranous junction) or perineal straddle injuries (which typically cause anterior bulbar urethral injuries).

• The classic clinical signs of a urethral injury form a well-known triad: blood at the external urethral meatus, inability to void (urinary retention), and a high-riding or non-palpable prostate on digital rectal exam (due to avulsion of the puboprostatic ligaments and pelvic hematoma). A perineal or scrotal hematoma (butterfly hematoma) is also common.

• Among these signs, blood at the external meatus is universally considered the single most consistent, common, and critically important cardinal sign of urethral disruption.

• The presence of this specific sign dictates that the insertion of a blind, transurethral Foley catheter is strictly and absolutely contraindicated. Attempting to pass a catheter blindly can easily convert a partial urethral tear into a complete, devastating transection.

• While a high-riding prostate is highly suggestive, it is notoriously difficult to assess accurately in the acute trauma setting if a large pelvic hematoma obscures the normal anatomy. Urinary retention and scrotal hematoma are also supportive signs but are far less specific than seeing macroscopic blood directly exiting the traumatized urethra.
Final Answer:
Blood at the external urethral meatus is the most suggestive and critical sign demanding immediate investigation (via retrograde urethrogram) before any catheterization is attempted.