What should be done for a patient in cardiac arrest?

For a patient in cardiac arrest, performing CPR (cardiopulmonary resuscitation) and using an AED (automated external defibrillator) are critical steps that can significantly increase the chance of survival. CPR helps maintain blood circulation to vital organs, while an AED can deliver an electrical shock to restore a normal heart rhythm if the heart is in a shockable arrhythmia.

Providing rescue breaths alone does not address the need for circulation, which is vital in cardiac arrest situations. While checking the airway and administering oxygen are important in many medical emergencies, they are not sufficient on their own during cardiac arrest, as immediate circulation is prioritized. Similarly, applying a tourniquet is relevant for severe bleeding situations but does not play a role in managing cardiac arrest. Therefore, the combination of CPR and AED use aligns with recommended emergency response protocols for patients experiencing cardiac arrest.