A 60-year-old male presents with trauma. Exam shows ecchymotic scrotum and palpable enlarged prostate. According to ATLS protocol, which of the following should be avoided initially?

Correct option is A

Scrotal ecchymosis + enlarged prostate → suspected urethral injury. In such cases, urinary catheterization is contraindicated until urethral injury is excluded (retrograde urethrogram).
Explanation of options: (a) ✔ Correct; catheter insertion may worsen urethral trauma. (b) ✘ Gastric tube (via oral/nasal route) is safe and part of trauma resuscitation. (c) ✘ FAST is a safe diagnostic tool for intra-abdominal bleed. (d) ✘ IV fluids are lifesaving in trauma, not contraindicated.