A 64-year-old man suddenly becomes pulseless and apneic after watching television. He had bypass surgery recently. What is your immediate response?

In an emergency situation where a patient becomes pulseless and apneic, the immediate response should center on providing cardiopulmonary resuscitation (CPR). This is critical because the absence of a pulse indicates that the heart is not effectively pumping blood, which can lead to irreversible damage to the brain and other vital organs within minutes.

Starting CPR promptly can help maintain blood flow to the organs and increase the chances of survival. It is a universal standard of care for any patient presenting with these signs, regardless of their medical history. The priority is to initiate chest compressions, followed by rescue breaths if trained and appropriate, until advanced medical help arrives.

While preparing an AED or checking vitals are important steps in managing a cardiac arrest, they typically follow the initiation of CPR. Focusing on immediate, high-quality chest compressions provides the best opportunity for the patient's survival until further assistance can take over.