During a potential cardiac arrest, what is the first action you should take?

• A. Check for a pulse for 10 seconds
• B. Begin CPR immediately
• C. Check blood pressure
• D. Obtain consent

Answer: (B)

In a potential cardiac arrest, the priority is to maintain blood flow to the brain and heart by starting chest compressions right away. Delaying CPR to check for a pulse can waste crucial seconds, and pulse checks in adults are often unreliable in an emergency. Begin CPR immediately if the person is unresponsive and not breathing normally, and call for help or have someone else call while you start compressions. If an AED is available, bring it and turn it on as soon as possible, continuing CPR until the device instructs you to analyze or shock. Consent isn’t required because the person is unresponsive, and you wouldn’t wait to take vital signs like blood pressure in this urgent situation.