Ключевые слова: blood, cardiology, clinic, clinical, coronavirus, covid19, covid19 pandemic, diagnosis, disease, display, doctor, emergency, equipment, finger, health, health care, healthy, heartbeat, human finger, instrument, machine, measure, measurement, measuring saturation, medical, medical equipment, medicine, monitoring, oximeter, oximetry, oxygen, oxygen saturation, oxygen therapy, oxygenation, patient, pulse, pulse oximeter, pulse oximetry, rate, sao2, saturation, scientific, services, shortage of oxygen, spo2, taking pulse, test, urgency, vital,