ekg certification test Flashcards
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
difference between idioventricular and junctional
idioventricular has wider qrs complexes
millivolt for small box
0.1 mv
new born ( birth to 1 year) heart rate
120 to 160
infant ( 1 - 12 months) heart rate
80 to 140
toddler ( 1- 3 years) heart rate
80 to 130
preschool age (3 -5 years) heart rate
80 to 120
school age (6 - 15 years) heart rate
70 to 100
adult ( older than 15 years) heart rate
60 to 100
artifact filters
machines are typically equipped with filters to remove external interference and anything over 150hz will cause an artifact
blood pressure for infant ( 1-12 months)
90/60
blood pressure for toddler ( 1-3 years)
95/65
blood pressure for school age ( 6-13 years)
105/70
blood pressure for adult ( over 15 years)
120/80
