This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Anatomy
Not true about urethral injuries is 
Select and explain. 
A. Catheterize the pt. immediately, B. Can be associated with fracture pelvis, C. Bladder injury is associated with post urethral injuries, D. Blood at the external urethral meatus is an imp feature
A: Catheterize the pt. immediately
Answer: A: Catheterize the pt. immediately 
Explanation: This is very well known that in a pt. of urethral injury, catheterization is not done b/c it would conve a paial tear into a complete transection of the urethra*. Blood at the urethral meatus is the single most impoant 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.