In the CAB emergency sequence, which component is addressed first?

In the CAB emergency sequence, which component is addressed first?

• A. Circulation
• B. Airway
• C. Breathing
• D. CAB

Answer: (A)

The first priority is Circulation. In a cardiac arrest, keeping blood flowing to vital organs is the immediate lifesaving step, so chest compressions to restore perfusion come before airway management or breathing. The CAB sequence is Circulation, then Airway, then Breathing, reflecting that pump-driven blood flow is the fastest way to buy time for brain and heart tissue. Once circulation is established, you open the airway and provide breaths as trained.

The first priority is Circulation. In a cardiac arrest, keeping blood flowing to vital organs is the immediate lifesaving step, so chest compressions to restore perfusion come before airway management or breathing. The CAB sequence is Circulation, then Airway, then Breathing, reflecting that pump-driven blood flow is the fastest way to buy time for brain and heart tissue. Once circulation is established, you open the airway and provide breaths as trained.