Week 2

Question 1

What is an ECG?

Answer 1

Graph of electricity over time

Question 2

What are the 3 diagnostic of ECG

Answer 2

1. Paper speed 24mm/sec
2. Voltage/Amplitude 10small squares
3. Hertz 0.05-40

Question 3

P wave represents

Answer 3

Normal depolarisation through atria to AV node

Question 4

PR segment represents

Answer 4

The speed of depolarisation through the atria

Question 5

Which wave represents ventricular repolarisation?

Answer 5

T wave

Question 6

Lead 1 views

Answer 6

Lateral surface of left ventricle

Question 7

Lead 2 views

Answer 7

Inferior surface of left ventricle

Question 8

Lead 3 views

Answer 8

Inferior surface of left ventricle

Question 9

V1 Lead shows which side of the heart?

Answer 9

Sepal

Question 10

V2 Lead shows which side of the heart?

Answer 10

Septal

Question 11

V3 Lead shows which side of the heart?

Answer 11

Anterior

Question 12

V4 Lead shows which side of the heart?

Answer 12

Anterior

Question 13

V5 Lead shows which side of the heart?

Answer 13

Lateral

Question 14

V6 Lead shows which side of the heart?

Answer 14

Lateral

Question 15

Lead 1 shows which side of the heart?

Answer 15

Lateral and aVL

Question 16

Lead 2 shows which side of the heart?

Answer 16

Inferior and aVR

Question 17

Lead 3 shows which side of the heart?

Answer 17

Inferior and aVF Inferior

Question 18

What does Q mean?

Answer 18

First negative deflection and should be small

Question 19

What does QRS mean?

Answer 19

<0.12sec & upright in leads 1 & 2

Question 20

How to determine heart rate via ECG - 6 second method?

Answer 20

1. Count 5 large squares = 1 second
2. Count 5 large squares 6 times to = 6seconds
3. Count complexes within 6 second
4. Number of complexes x 10 = HR