Ключевые слова: 911, accident, ambulance, ambulance help, blood, blood oxygen level, car, care, checking, closeup, emergency, emergency care, emergency medical aid, ems, fingertip, fingertip pulse oximeter, first aid, guy, hand, health care, healthcare, help, hospital, injured, level, lying, male, male patient, man, measuring, medic, medical, medicine, medicine and health, oximeter, oxygen, paramedic, patient, people, person, procedure, pulse, rescue, service, slow motion, stretchers, unrecognizable, using, victim,