2019ncov
adult
background
blood
cardiac
care
check
checking
closeup
corona
coronavirus
covid
covid19
device
electronic
equipment
finger
fingertip
hand
health
heartbeat
hemoglobin
level
male
man
measure
measurement
measuring
medical
medicine
meter
modern
monitor
monitoring
oximeter
oximetry
oxygen
pandemic
person
pressure
pulse
rate
saturation
screen
technology
using
vital