Chapter 13 Flashcards
1
Q
RBBB criteria
A
Prolonged QRS
Slurred S wave in I and V6
rSR’ pattern in V1
2
Q
LBBB
A
Prolonged QRS
Broad monomorphic R waves in I and V6 with no Q
Broad monomorphic S waves in V1, may have small R wave
SHOULD be discordant
V1 V2 neg V5 V6 and I positive
3
Q
Localized IVCD
A
Shorter than 0.12, common in lead III. QRS with many peaks, sort of like an RSR’ pattern
4
Q
IVCD
A
0.12 seconds or wider, but lacking some characteristics of LBBB or RBBB. Typical presentation is QRS in V1 have LBBB (wide, monomorphic, discordant, negative) and V6 looks like a RBBB (wide, slurred S wave) Hyperkalemia is the deadliest cause, or TCA OD
5
Q
LAF innervates
A
anterior and lateral walls
6
Q
LPF innervates
A
inferior and posterior walls
