What does the acronym CAB stand for in BLS?

The acronym CAB in Basic Life Support (BLS) stands for Circulation, Airway, and Breathing. This sequence is essential for providing effective cardiopulmonary resuscitation (CPR). The emphasis on "Circulation" first highlights the critical importance of initiating chest compressions immediately to maintain blood flow and oxygen delivery to vital organs, especially the heart and brain, during cardiac arrest.

Following the emphasis on circulation, ensuring an open airway allows rescue breaths to be delivered effectively. Breathing, while typically considered a secondary focus in the CPR sequence, is essential in providing oxygenation after circulation has been addressed. This structured approach ultimately enhances the chances of survival until advanced medical care arrives.

Therefore, understanding CAB is fundamental for anyone trained in BLS, as it encapsulates the necessary steps to optimize patient outcomes in emergencies.