ECG Flashcards
What are the limb leads
I, II, III
What are the two types of leads?
Unipolar and Bipolar
Leads I, II, and III are called __________, while leads aVF, aVR, and aVL are called __________.
Bipolar
Unipolar
What are the leads that are requested when there’s right ventricular infarct?
V4R, V5R, and V6R
In SINUS ARRHYTHMIA, the SA node discharges ________, rate is _______, P-P interval is ________, R-R interval is ______, P-waves, PR interval and QRS are ________.
irreularly, normal, varied, more than 120 msecs, normal
In JUNCTIONAL RHYTHM, the pacemaker is the _______ and the ventricular rate is _______, rhythm is _______, QRS is _______.
AV junction, 40-60 bpm, regular, and narrow or less than 0.12 sec
In IDIOVENTRICULAR RHYTHM, the pacemaker is the _______ with a ventricular rate of 20-40 bpm, p-wave is _______, rhythm is _______, and QRS complex is _______.
His-Purkinje system, absent, wide or more than 0.12 sec
What formula do you use to correct QT interval?
Bazzet’s formula
Bazzet’s formula, used to correct QT, is done only when _______!
There’s abnormal HR (<60 or >100 bpm)
Computation for HR for irreg rhythm
of QRS complexes within 30 large boxes
Normal value for p wave
Less than or equal to 120 msec or 3 small squares
Normal value for PR interval
Less than or equal to 200 msec or 5 small squares
QRS duration
Less than or equal to 110 - 120 msec or 3 small squares
Normal axis
-30 to 90 degrees
RAD
90 - 180 degrees
