Cardiopulmonary Resuscitation and Basic Life Support are life-saving techniques used in emergency situations when someone's heart or breathing has stopped. The ABC of CPR—Airway, Breathing, Circulation—is a fundamental framework that guides responders through the critical steps of providing immediate assistance. This guide will provide a comprehensive overview of the ABC of CPR, emphasizing the importance of these steps and the correct techniques involved.
What is ABC of CPR?
The ABC of CPR and Basic Life Support ensures that the victim receives high-quality CPR within the shortest time possible. The ABC are abbreviations for Airway, Breathing, and Circulation. It refers to the sequence of events in Basic Life Support.
- Airway: Open the victim’s airway using a head-tilt chin-lift or jaw thrust maneuver
- Breathing: Provide rescue breathing
- Circulation: Perform chest compression to restore the blood circulation
Airway
A is for Airway Management. The airway is the first component of the ABCs and is crucial for ensuring that oxygen flows freely into the lungs and carbon dioxide is expelled from the body. Proper airway management involves the following steps:
- Assessing the Airway: In any emergency situation, the first step is to assess the victim's responsiveness. Tap the victim and shout loudly to check for any response. If the victim is unresponsive, proceed with airway management.
- Opening the Airway: To open the airway, gently tilt the victim's head backward and lift their chin upward. This maneuver helps to ensure that the tongue and other soft tissues do not obstruct the airway.
- Checking for Breathing: Lean close to the victim's mouth and nose and look, listen, and feel for any signs of breathing. If the victim is not breathing or only gasping, it's essential to initiate rescue breathing immediately.
Breathing
B in ABC is for breathing assessment. After assessing and opening the airway, the goal is to provide artificial ventilation to deliver oxygen to the victim's lungs. Key steps for addressing breathing are as follows:
- Rescue Breathing: If the victim is not breathing or only gasping, give two rescue breaths. Ensure a proper seal over the victim's mouth and pinch the victim's nose shut to prevent air from escaping.
- Proper Technique: Deliver each rescue breath over one second, watching for chest rise and fall as you provide ventilation. If the breaths do not go in, reposition the head and try again.
Circulation
C is for Cicrulation/Compression. Circulation is the most critical component of the ABCs. After ensuring the airway is open and providing rescue breaths, it's time to focus on maintaining blood circulation. Key steps for addressing circulation are as follows:
- Chest Compressions: If the victim remains unresponsive and is not breathing effectively, start chest compressions. Place the heel of one hand on the center of the victim's chest (lower half of the sternum) and place the other hand on top of the first, interlocking your fingers.
- Proper Technique: Push hard and fast, aiming for a rate of at least 100-120 compressions per minute. Allow the chest to fully recoil between compressions and use your upper body weight to achieve sufficient depth (at least 2 inches for adults).
- Compression-to-Breath Ratio: In single-rescuer CPR, use a ratio of 30 compressions to 2 rescue breaths. Compressions should be continuous with minimal interruptions.