Ключевые слова: 911, accident, active, aid, airway obstruction, assistance, basic life support, body, cardiac, cardiac massage, cardiopulmonary, cardiopulmonary resuscitation, care, certification, chest, concept, conduction, cpr, cpr class, cpr training, danger, dangerous, defibrillator, demonstrating, demonstration, doctor, dummy, education, emergency, equipment, exam, exercise, fingers, first, frame, health, healthcare, healthy, heart attack, hospital, human, hypertension, injured, injury, instruction, instructor, learning, lifesaver, lying, man, medical, medicine, paramedic, patient, person, practice,