As a medical professional with expertise in emergency care, I'm often asked about the specifics of life-saving procedures such as cardiopulmonary resuscitation (CPR). The acronym CPR stands for "cardio" (relating to the heart), "pulmonary" (relating to the lungs), and "resuscitation" (restoration of life or consciousness). It's a critical procedure that can mean the difference between life and death in the event of cardiac arrest.
In the context of CPR, the term "cab" is not a standard abbreviation or acronym used in the field. However, it seems there might be some confusion with the sequence of actions within the CPR procedure. Historically, the sequence was "A-B-Cs," which stands for Airway-Breathing-Compressions. This sequence was taught to ensure that rescuers first opened the victim's airway, checked for breathing, and then proceeded to chest compressions if necessary.
However, in recent years, there has been a shift in the recommended approach. The American Heart Association (AHA) and other health organizations have suggested that for lay rescuers (non-professionals), it might be more effective to start with chest compressions and then proceed with the airway and breathing. This change was based on evidence that initiating CPR with chest compressions can improve survival rates for victims of sudden cardiac arrest, as it ensures that vital blood flow to the heart and brain is restored sooner.
The new sequence, "C-A-B," stands for Compressions-Airway-Breathing. Here's a brief overview of each step:

1. Compressions: Begin by placing the heel of one hand in the center of the victim's chest and the other hand on top. Interlock your fingers and keep your arms straight. Press down hard and fast, about 2 inches deep, at a rate of 100 to 120 compressions per minute.

2. Airway: After 30 compressions, tilt the victim's head back slightly to open the airway. This is done by lifting the chin and pushing down on the forehead.

3. Breathing: Pinch the victim's nose closed and take a normal breath. Then, create a seal around the victim's mouth with your mouth and give two rescue breaths. Each breath should make the victim's chest rise.
This change from A-B-Cs to C-A-B was announced on October 18, 2010, and it was aimed at simplifying the process for lay rescuers and increasing the likelihood of bystanders performing CPR, which can significantly improve survival rates.
It's important to note that for professional rescuers or those with medical training, the approach to CPR might still involve checking for a pulse and other steps before beginning chest compressions. The key is to act quickly and confidently in an emergency situation, and to provide the best possible care based on the most current guidelines and your level of training.

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Compressions-Airway-BreathingRecommending that chest compressions be the first step for lay and professional rescuers to revive victims of sudden cardiac arrest, the association said the A-B-Cs (Airway-Breathing-Compressions) of CPR should now be changed to C-A-B (Compressions-Airway-Breathing).Oct 18, 2010read more >>