Which imaging modality is considered the bedside rapid assessment for intraperitoneal bleeding in unstable trauma patients?

Which imaging modality is considered the bedside rapid assessment for intraperitoneal bleeding in unstable trauma patients?

• A. CT scan
• B. FAST
• C. X-ray
• D. MRI

Answer: (B)

The main concept is using bedside ultrasound with the FAST exam to rapidly detect intraperitoneal bleeding in an unstable trauma patient. FAST is performed right at the patient’s side and quickly looks for free fluid in the hepatorenal recess, splenorenal and suprapubic areas, and can include a pericardial view. In the setting of instability, this immediate information guides urgent decisions about need for surgical intervention or further resuscitation, without delaying care to move the patient to another room. CT scanning, while more sensitive, requires transporting a unstable patient to radiology and takes more time, so it isn’t feasible as a bedside rapid assessment in this scenario. X-ray and MRI lack the sensitivity and speed needed to assess intraperitoneal bleeding promptly in an emergency. FAST may be extended to assess the chest for pneumothorax as well, if available.

The main concept is using bedside ultrasound with the FAST exam to rapidly detect intraperitoneal bleeding in an unstable trauma patient. FAST is performed right at the patient’s side and quickly looks for free fluid in the hepatorenal recess, splenorenal and suprapubic areas, and can include a pericardial view. In the setting of instability, this immediate information guides urgent decisions about need for surgical intervention or further resuscitation, without delaying care to move the patient to another room. CT scanning, while more sensitive, requires transporting a unstable patient to radiology and takes more time, so it isn’t feasible as a bedside rapid assessment in this scenario. X-ray and MRI lack the sensitivity and speed needed to assess intraperitoneal bleeding promptly in an emergency. FAST may be extended to assess the chest for pneumothorax as well, if available.