Which bedside imaging modality rapidly detects intraperitoneal bleeding in trauma patients?

Which bedside imaging modality rapidly detects intraperitoneal bleeding in trauma patients?

• A. CT abdomen
• B. MRI abdomen
• C. EFAST
• D. FAST

Answer: (D)

Bedside ultrasound used in trauma to look for free intraperitoneal fluid is the fastest way to detect bleeding in the abdomen. This exam, often called FAST, can be done immediately in the trauma bay without moving the patient, and it can be completed in just a few minutes. It’s highly useful in unstable patients because it provides real-time information about whether there is free fluid, which often indicates intraabdominal bleeding requiring urgent management, such as operative exploration or rapid resuscitation decisions. CT abdomen is more precise and can localize injuries, but it requires stability and transport to the scanner, which delays decision-making in a critically injured patient. MRI is not practical in the emergent setting due to time and availability. The extended version, EFAST, adds chest and pericardial views, useful for detecting pneumothorax or pericardial effusion, but for the specific task of rapidly identifying intraperitoneal bleeding, the basic FAST exam is the quickest bedside option.

Bedside ultrasound used in trauma to look for free intraperitoneal fluid is the fastest way to detect bleeding in the abdomen. This exam, often called FAST, can be done immediately in the trauma bay without moving the patient, and it can be completed in just a few minutes. It’s highly useful in unstable patients because it provides real-time information about whether there is free fluid, which often indicates intraabdominal bleeding requiring urgent management, such as operative exploration or rapid resuscitation decisions.

CT abdomen is more precise and can localize injuries, but it requires stability and transport to the scanner, which delays decision-making in a critically injured patient. MRI is not practical in the emergent setting due to time and availability. The extended version, EFAST, adds chest and pericardial views, useful for detecting pneumothorax or pericardial effusion, but for the specific task of rapidly identifying intraperitoneal bleeding, the basic FAST exam is the quickest bedside option.