ekg certification test Flashcards
(37 cards)
PR segment
end of p to start of q
QRS interval
start of q to end of s
ST segment
end of s to start of t
R-R interval
R to R
PR interval
start of p to start of q
QT interval
start of q to end of t
NPO
nothing by mouth
when to replace ekg paper
when a thick band of color ( usually red) on the border appears
how to replace ekg paper
load paper with printed side up and replace the lid
how to clean skin?
disinfectant wipe
P wave
atrial depolarization
q wave
negative deflection
r wave
positive deflection
s wave
negative deflection
qrs complex duration
0.06 to 0.12 seconds
t wave
ventricular repolarization
pr interval duration
0.12 to 0.2 seconds
qt interval duration
0.36 to 0.44 seconds
somatic tremor causes
shivers, seizure activity, muscle movement
ac interference causes
electronic devide or plug
interrupted baseline
broken lead wires or disconnected leads
negative deflection
one or more leads are attatched incorrectly
STEMI
st elevation myocordial infarction
st segment depression
myocardial ischemia
