EKG leads Flashcards
lead I
LA & RA
upper latteral wall view
Lead II
LL & RA
inferior left view
Lead III
LL & LA
inferior right angle view
aVR
RA & LA & LL
upper right side
aVL
LA & RA & LL
upper laeral wall of ventricle
aVF
LL & RA & LA
inferior wall of the heart
V1
fourth intercostal space at right margin of sternum
V2
fourth intercostal space at left margin of sternum
V4
fifth intercostal space on left midclavicular line
V3
midway between V2 and V4
V5
Horizontal to V4 at left anterior axillary line
V6
Horizontal to V4 at mid auxilary line
Bipolar
I,II & II Leads
augmented
aVR, aVL & aVF
precordial
V1, V2, V$, V3, V5 and V6
V2, 3 & 4 view
anterior wall of left ventricle
V5, 6
lower lateral wall and left ventricle
p wave
first part of hearrt cycle, atrial depolarization (contraction)
QRS wave
ventricular depolarization (contraction)
T wave
ventricular repolarization ( recovery)
QT interval
beginning of ventricular depolarization to end of ventricular repolarization
PR interval
beginning of atrial depolarization to the beginning of ventricular depolarization
PR segment
end of atrial depolarization to beginning of ventricular depolarization
ST segment
end of ventricular depolarization to beginning of ventricular repolarization
