ecg Flashcards
Primary Pacemaker
SA node
The route electrical impulses take to get to the remaining parts of the myocardium
Bundle of His
Delays the electrical impulses, allowing the atria to complete the contraction
AV node
if the electrical impulse is fired off in the SA node, the heart rate should be between
60-100 ( normal heart rate)
a slowed heart rate is referred to as
Bradycardia
V1 and aVR should be _________ on the tracing if your patient is connected properly
Negative
the QRS complex is measured from where on a rhythm strip
1st deflection after the P wave to where the S wave meets the isoelectric wave
The term used to describe the recovery period before the next heart beat
Repolarization
A period of Zero electrical activity
Isoelectric line
represents the Atrial Depolarization
PR interval
ST Segment & T wave represents Ventricular
Repolarization
The QRS complex represents
Ventricular Depolarization
If Electrical impulses start in the AV node , the heart rate will reflect
Bradycardia (delayed heart rate)
What is measured from the beginning of the QRS complex to the end of the T wave.
QT interval
A perfect Waveform is referred to as
Normal Sinus Rhythm