H for hypovolemia (PSLA for chamber & subcostal for IVC)
E for ejection (PSLA for FS & EPSS or Apical 4 for MAPSE & TAPSE)
A for aorta (PSLA for aortic root & descending aorta then abdominal aorta)
R for right chamber (Apical 4 for RV/LV or PSSA for D sign)
T for tamponade (PSLA & Subcostal 4 for effusion & subcostal 4 for IVC)
The “5Es” protocol for Emergency physician-performed Focused Cardiac Ultrasound (Hall et al. Acad Emerg Med 2015;22:583-593)
Effusion
Ejection
Equality
Exit
Entrance
