ECG Basics Flashcards Preview

Hugh's MD2 Gen Med > ECG Basics > Flashcards

Flashcards in ECG Basics Deck (14):
1

Which leads look at the left lateral surface of the heart?

I, aVL, V5, and V6

2

What is the normal length of the QRS?

0.12s (3 small squares)

3

Which leads look at the intraventricular septum?

V3 and V4

3

Which artery generally supplies the inferior surface of the LV?

R coronary artery

5

How much times does a smal square represent?

0.04s

6

Which way does the AP travel across the wall of the heart?

Endo to epicardium

7

Which leads look at the inferior surface of the heart?

II, III and aVF

8

Which leads look at the RA?

aVR

9

Which leads look at the RV?

V1 and V2

10

What is a normal PR interval?

0.12 to 0.2s (3 to 5 small squares)

11

What are the PR interval represent in terms of cardiac physiology?

The time taken for impulse to travel from the SA node, through the atrium, AV, bundle of his and into ventricular muscle

12

II, III and aVF is which artery?

R coronary artery

13

Which leads look at the anterior and lateral wall of the LV?

V5 and V6

14

How much times does a large square represent?

0.2s