Hypertrophy & Blocks Flashcards
(10 cards)
1
Q
RVH criteria
A
Rt. Axis Deviation > 90°, AND
- R wave ≥ S wave in V1;
or
- R wave in V1 PLUS S wave in V6 ≥ 11mm
2
Q
RA Hypertrophy criteria
A
Lead II P wave ≥ 2.5mm, usually pointed
3
Q
LA Hypertrophy criteria
A
Lead V1 P wave has negative deflection ≥ 1mm
4
Q
LVH criteria
A
Any of these:
- R wave in V5 or V6 > 27mm
- R wave in aVL ≥ 11mm
- R wave in V5 PLUS S wave in V1 ≥ 35mm
5
Q
Bundle Branch for QRS time
A
Must be > .11 sec or no BBB!
6
Q
LBBB criteria
A
QRS in V1 is negative (and > .11 sec)
If so, can’t diagnose LVH.
7
Q
RBBB criteria
A
QRS in V1 is positive (and > .11 sec)
If so, can’t diagnose RVH.
8
Q
Left Anterior Hemiblock criteria
A
Axis ≥ -40°
No inferior infarction, small Q wave Lead I
9
Q
Right Anterior Hemiblock criteria
A
Axis ≥ +120°
No RVH, small Q wave in Lead II
10
Q
Non-Specific Intraventricular Conduction Disturbance
A
QRS > .12 seconds
Doesn’t conform to LBBB or RBBB pattern
