Table 1: RUSH protocol summary.

RUSH examHypovolemic shockCardiogenic shockObstructive shockDistributive shock

PumpHypercontractile heart
Small heart size
Hypocontractile heart
Dilated heart size
Pericardial effusion, RV strain
Hypercontractile heart
Hypercontractile heart (early sepsis)
Hypocontractile heart (late sepsis)

TankFlat IVC
Flat IJV
Peritoneal fluid
Pleural fluid
Distended IVC
Distended IJV
Lung rockets
Pleural effusions, ascites
Distended IVC
Distended IJV
Absent lung sliding
(PTX)
Normal/small IVC
Normal/small IJV
Pleural fluid (empyema)
Peritoneal fluid (peritonitis)

PipesAAA
Aortic dissection
Normal DVTNormal