MCA Training
U.S. Air Force Airmen check for massive hemorrhage, airway, respirations, circulation, head injury/hypothermia at Davis-Monthan Air Force Base, Arizona, Feb. 9, 2022. The application of MARCH, an mnemonic, is widely used by the U.S. military as the standard for how to determine serious injuries. (U.S. Air Force photo by Airman 1st Class Vaughn Weber)