Which of the following statements about imaging in trauma and abdominal assessment is correct?

• A. MRI to assess internal bleeding
• B. CT scan for all trauma
• C. Ultrasound used in FAST exam to assess abdomen in trauma
• D. X-ray to check for organ injury

Answer: (C)

In trauma imaging, rapid bedside assessment is essential to spot life-threatening issues. The ultrasound used in the FAST exam is the best choice for evaluating the abdomen because it can be done immediately at the patient’s side, repeatedly if needed, and without moving the patient. It looks for free fluid in spaces around the liver, spleen, pelvis, and sometimes the heart, which can indicate internal bleeding and prompt urgent management.

CT scans have a crucial role, but they’re used when the patient is stable enough to be transported and to obtain detailed anatomic information. MRI isn’t practical in the acute setting due to time and availability, and X-rays have limited sensitivity for detecting organ injury or small amounts of internal bleeding. So the FAST ultrasound remains the most appropriate initial tool for abdominal assessment in trauma.