OCS Blue Phase Up Sheet Practice Test

In the MARCH sequence, the A stands for Airway. After quickly addressing massive bleeding, securing a clear airway is the next priority because without a patent airway, oxygen cannot reach the lungs and ventilation cannot be provided, no matter what you do about bleeding. Airway management involves keeping the airway open and ensuring oxygen delivery, starting with basic maneuvers (like a jaw-thrust to open the airway), suction to clear obstructions, and using airway adjuncts or advanced devices as needed. The other options aren’t part of this mnemonic’s defined steps, so they don’t fit the acronym’s meaning.