If a patient suddenly collapses in the operatory with no pulse or breathing, what should you do first?

In a scenario where a patient suddenly collapses with no observable pulse or breathing, the immediate priority is to activate emergency response protocols while simultaneously providing life-saving measures. The correct action in this situation is to call for help and begin CPR without delay.

Initiating CPR promptly is crucial as it maintains blood circulation to vital organs and increases the chances of survival. Simultaneously, calling for help ensures that additional medical assistance is on the way, which is essential for a comprehensive response to a cardiac emergency.

Checking the patient's pulse before starting CPR can waste critical time; in emergencies, the focus should be on providing immediate care rather than performing unnecessary checks. Administering oxygen is not appropriate at this stage, as the patient requires chest compressions to restore circulation. Performing a head tilt is typically done to open the airway but does not address the immediate need for circulatory support. Therefore, activating emergency protocols and performing CPR first is vital for improving outcomes in such urgent situations.