blue
bluish
breathless
breathlessness
cardiac
central
changes
chronic
color
cyan
cyanosis
cyanotic
dark
discoloration
discolored
discolouration
discoloured
disease
elder
elderly
finger
fingers
fingertips
hand
hands
heart
hypoxemia
hypoxia
ill
lung
nails
old
omicron
pallor
palm
palmar
patient
peripheral
problem
purple
respiratory
skin
smoker
smoking
stain
stained
unhealthy
young