blsd. first aid training concept. the use of an automatic external defibrillator in conducting a basic cardiopulmonary

aid assistance attack automated cardiac cardiology chest education emergency exercise health care heartbeat help learning paramedic patient practice rescue safety training cpr device first life resuscitation automatic compression equipment external hand defibrillation defibrillator medicals instructor massaging procedure arrest clinical dead death doctor heart injury massage nursing pump saving staff blsd concept use conducting basic cardiopulmonary blsd concept resuscitation