Chapter 8 Flashcards
(10 cards)
1
Q
Hypertrophy refers to increase in muscle mass of
A
Myocardium
2
Q
Can hypertrophy be completely diagnosed on an ekg?
A
No
3
Q
Why ventricular hypertrophy occurs in left ventricle?
A
- systemic hypertension (systolic >140)
- aortic valve stenosis (must pump harder to push blood out)
4
Q
Why ventricular hypertrophy occurs in right ventricle?
A
-pulmonary hypertension (lung obstructions like asthma)
-pulmonary valve stenosis
5
Q
QRS characteristics of right ventricular hypertrophy
A
- Abnormally large R wave in V1-4
- Inverted T wave in V1
- RAD (vector pulls towards hyper side)
- Rightward rotation
6
Q
Left ventricular hypertrophy criteria?
A
- exaggerated QRS amplitude
- LAD
- Large S wave in V1
- Large R wave in V5
- Add S wave + R wave > 35
7
Q
For left ventricular hypertrophy you would see the T wave behave how? In what leads?
A
Inverted in V5/V6, long gradual decrease and sharp return
8
Q
What is ventricular strain?
A
Ventricle straining against resistance, resulting in depressed and humped ST segment
9
Q
Atrial enlargement results in
A
Diphasic p wave (positive and negative)
10
Q
A
