In the FAST exam, the Morison pouch corresponds to which region?

In the FAST exam, the Morison pouch corresponds to which region?

• A. Perihepatic region
• B. Pelvis - Douglas pouch
• C. Pericardium region
• D. Perisplenic region

Answer: (A)

In FAST imaging, Morison’s pouch refers to the hepatorenal recess—the space between the liver and the right kidney in the right upper quadrant. It sits in the perihepatic region, and fluid tends to collect there when intraperitoneal bleeding occurs, making this view highly sensitive for detecting free fluid in trauma. The pelvis (Douglas pouch) is the pelvic dependent space evaluated in the pelvic view, not in the RUQ. The pericardium region is assessed for cardiac tamponade, not intraperitoneal fluid. The perisplenic region is in the left upper quadrant around the spleen.

In FAST imaging, Morison’s pouch refers to the hepatorenal recess—the space between the liver and the right kidney in the right upper quadrant. It sits in the perihepatic region, and fluid tends to collect there when intraperitoneal bleeding occurs, making this view highly sensitive for detecting free fluid in trauma. The pelvis (Douglas pouch) is the pelvic dependent space evaluated in the pelvic view, not in the RUQ. The pericardium region is assessed for cardiac tamponade, not intraperitoneal fluid. The perisplenic region is in the left upper quadrant around the spleen.