test 2 pt.2 Flashcards
in the p wave..
the atria is contracting; sending the electrical impulse
depolarization
pr segment
identifies the isoelectric line; impulse is traveling
pr interval
length of time the impulse is being sent from sa node to perkinges fibers; shouldn’t be longer than .20seconds
t wave
repolarization of ventricles
st segment should
come back to baseline
is st segment goes up what does this mean
MI; injury
u wave can represent
hypokalemia; low potassium
av node is the
gatekeeper. holds onto impulse for atrium to do one last squeeze which is 25% of cardiac output
t wave inversion
ischemia
tissue death; abnormal q wave
infarction
peaked t wave
hyperkalemia high potassium
stretch on ventricle at end of diastole
preload
pressure the ventricles outcome to inject blood out
after load
primary hyperlipidemia
caused by genetics
secondary hyperlipidemia
result from another disease
feb 1
go red for women; cardiac health month; 1 in 5 will die of cardiovascular
-statins are for
hypercholesterolemia
why should statins be given at night
cholesterol is produced and liver works the most
artierosclerosis
hardening of arteries
atherosclerosis is mainly what
fats cause thickening of vessels
pain in calf when walking
claudication
another manifestation of pad
thinning of skin; shining ; lack of hair on lower extremities