CPR, or cardiopulmonary resuscitation, is a life-saving technique that's useful in many emergencies, such as a heart attack or near drowning, where someone's breathing or heartbeat has stopped. Here's a general guide on how to perform CPR:
1. Check the environment and the person: Ensure the scene is safe, then tap the person on the shoulder and shout "Are you OK?" to ensure that the person needs help.
2. Call for help: Dial 999 or ask someone else to do so.
3. Open the airway: With the person lying on their back, tilt the head back slightly to lift the chin.
4. Check for breathing: Listen carefully, for no more than 10 seconds, for sounds of breathing. If there is no breathing begin CPR.
5. Push hard, push fast: Place your hands, one on top of the other, in the middle of the chest. Use your body weight to help you administer compressions that are at least 2 inches deep and delivered at a rate of at least 100 compressions per minute.
6. Deliver rescue breaths: With the person's head tilted back slightly and the chin lifted, pinch the nose shut and place your mouth over the person's mouth to make a complete seal. Blow into the person's mouth to make the chest rise. Deliver two rescue breaths, then continue compressions.
7. Continue CPR steps: Keep performing cycles of chest compressions and breathing until the person exhibits signs of life, such as breathing, an AED becomes available, or EMS or a trained medical responder can take over.
The best place to perform CPR is on a firm, flat surface. This allows for the most effective chest compressions.
As for the age groups, the style of CPR does change:
- Adults: Use the method described above.
- Children aged 1 to puberty: Use one or two hands, as needed, to achieve proper chest compression depth. The rate of compression and breaths remains the same.
- Infants (up to 1 year old, excluding newborns): Use two fingers to give compressions in the centre of the chest. Compressions should be about 1.5 inches deep at a rate of 100-120 per minute. Give one breath every 3-5 seconds.
- Newborns: Newborn resuscitation is complex and should be performed by trained healthcare providers. It involves measures to clear the airways, provide warmth, and stimulate breathing.
Remember, any attempt at CPR is better than no attempt. CPR can keep oxygenated blood flowing to the brain and other vital organs until more definitive medical treatment can restore a normal heart rhythm.
As for where it's done best in the world, it's hard to say definitively as it depends on many factors including the training of the individual, the availability of medical equipment, and the immediate response of medical services. However, countries with advanced healthcare systems and widespread CPR training, such as the UK, the US, Canada, Australia, and many countries in Europe, tend to have higher survival rates from cardiac arrest.