Ключевые слова: background, blood, cardiac, care, check, clinic, composition, device, digital, electronic, equipment, finger, fingertip, flat, gloves, health, heartbeat, hemoglobin, items, lay, level, machine, mask, measure, measurement, measuring, medical, medicine, modern, monitor, monitoring, notebook, object, oximeter, oximetry, oxygen, oxymeter, pen, pills, pressure, pulse, rate, saturation, stethoscope, technology, tool, top, view, vital, white,