EKG Normals Flashcards
1 small square
0.04
5 big squares or one section of a tick
1 second
time is represented by
horizontal lines
voltage is represented by
vertical lines
each small square is how much milivolt
0.1
isoelectric line indicates
absence of electrical activity
P wave represents
atrial depolarization
PR interval time
0.12-0.20
PR represents
length of time it takes the impulse to travel from the atria to the ventricles
QRS represents
ventricular depolaorization
Q wave is often
absent
QRS interval time
0.04-0.12
ST segment represents
early phase of depolarization of both ventricles
ST segment should be
flat and isoelectric
T wave represents
ventricular repolorization
T wave is normally how much in amplitude
5mm
how to find rate
count R waves and then multiply by 10