Cardiopulmonary resuscitation (CPR) is performed on people who have stopped breathing and do not have a pulse. It is vital in life-threatening situations like a drowning accident or cardiac arrest. The aim of CPR is to compress the chest and heart so that blood can be pumped to the brain, albeit weakly. Fast action is required. If CPR is not started within two minutes of the heart stopping, brain damage can develop rapidly.

CPR is the shortest and most basic of all medical training classes. The classes are designed to their audience. For example, the general public does not get the same training that paramedics receive. While the aims of training are relatively standardized, the actual course names may differ. Broadly speaking, the class levels are broken down as follows:

• Adult CPR classes. The simplest form of CPR can be learned in less than an hour. It only covers basic techniques for adults, teens, and adolescents eight and older. This level is perfect for the workplace or home (particularly if you are caring for an elderly person at risk of cardiac arrest). If you have access to an automated external defibrillator(AED) at work or home, training for that can be added to the course.
• Pediatric CPR classes. If you care for children under eight, this is the CPR class for you. The resuscitation techniques are far different than those used for adults and may include proper airway clearance and the chest compression ratio for infants, toddlers, and young children. If you coach or volunteer at a school, playground, or daycare, then learning infant and child CPR is essential.
• Basic life support for healthcare providers. Also called CPR for professional rescuers, these classes are required for all emergency medical personnel. This class covers AED, ventilation devices, barriers to performing rescue breathing, and two-person CPR techniques. If you’re planning on entering the medical field, this level of training is a must.