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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Not true about urethral injuries is -
assistant
The correct answer is  This is very well known that in a pt. of urethral injury, catheterization is not done b/c it would convert a partial tear into a complete transection of the urethra*.
Blood at the urethral meatus is the single most important sign of urethral injury. The presence of blood at the external urethral meatus indicates that immediate urethrography is necessary to establish the diagnosis.
Bladder injury (either intraperitoneal or extraperitoneal) is associated with posterior urethral injuries.