How does CPR work?

CPR (Cardiopulmonary Resuscitation) is a life-saving technique that helps restore blood flow and breathing to a person in cardiac arrest. Here's a step-by-step explanation of how CPR works:

1. Check for Responsiveness:

- Gently shake and shout to the person to check if they are responsive.

- If the person is unresponsive, call for emergency help.

2. Start Chest Compressions:

- Place the heel of one hand on the person's sternum, between the nipples.

- Place the other hand on top of the first hand, interlacing your fingers.

- Position yourself with your shoulders directly above your hands.

- Give chest compressions at a rate of 100 to 120 compressions per minute.

- Push down 3.8 to 5 centimeters (1.5 to 2 inches) on the chest.

- Allow the chest to recoil between compressions.

3. Give Rescue Breaths (If Trained):

- If you are trained in CPR, provide rescue breaths.

- Pinch the person's nose closed and cover their mouth completely with your mouth to create an airtight seal.

- Give two rescue breaths, each lasting about one second.

- Watch for the chest to rise and fall with each breath.

4. Continue Cycles of Compressions and Breaths:

- After every 30 chest compressions, give two rescue breaths.

- Continue alternating between 30 compressions and 2 breaths until:

- The person shows signs of life, such as breathing or moving.

- Emergency medical help arrives and takes over.

5. Use an Automated External Defibrillator (AED), if Available:

- If an AED is nearby, turn it on and follow the voice prompts.

- Attach the AED pads to the person's chest as directed.

- The AED will analyze the heart rhythm and advise if a shock is needed.

- If a shock is recommended, ensure no one is touching the person and deliver the shock as per the AED's instructions.

It's important to note that CPR is a temporary measure until professional medical help arrives. Proper and effective CPR can significantly increase the chances of survival during cardiac arrest. If you are not trained in CPR, consider enrolling in a certified CPR training program to gain the necessary skills to respond effectively in emergency situations.