Hypertrophy Flashcards
1
Q
what is the normal P wave amplitude and time
A
<.12 seconds and <2.5 mm
2
Q
what are the criteria for RAE
A
P-wave >2.5 mm in an inferior lead!
(leads II, III, aVF)
3
Q
what are the criteria for LAE
A
- P wave > 0.12 sec w/ terminal portion > 0.04 sec
- Terminal portion of P wave in V1 > 1 mm below
4
Q
what is the normal axis of QRS
A
axis between 0 and 90
5
Q
what is the criteria for RVH in the limb leads
A
- right axis deviation
- negative QRS in left leads (I, aVL)
6
Q
what are the chest lead criteria for RVH
A
- in lead V1, R wave is larger than S wave
- in lead V6, S wave is larger than R wave
7
Q
what is the limb lead criteria for LVH
A
The R-wave amplitude in lead aVL exceeds 11 mm
8
Q
what is the chest lead criteria for LVH
A
The R-wave amplitude in lead V5 or V6plusthe S wave amplitude in lead V1 or V2 exceeds 35 mm
9
Q
what is the combined criteria for LVH
A
The R-wave amplitude in aVL plus the S-wave amplitude in V3 exceeds 20 in women and 28 in men
