7. The Electrocardiogram Flashcards Preview

Cardiovascular System > 7. The Electrocardiogram > Flashcards

Flashcards in 7. The Electrocardiogram Deck (15)
1

What creates the Q wave?

Septal depolarisation and spreading

2

What creates the R wave?

Main ventricular depolarisation

3

What creates the T wave?

Ventricular repolarisation

4

Why doesn't atrial repolarisation create a wave?

Lost in QRS complex

5

Depolarisation moving towards the lead causes what wave to be produced?

Big wave upwards

6

Repolarisation moving towards the lead causes what wave to be produced?

Big downwards wave

7

How do you calculate rate using an ECG trace?

300/number of squares in R-R interval Use a larger interval if rhythm is irregular

8

What creates the P wave?

Atrial depolarisation

9

What condition can cause this ECG?

Atrial Fibrillation

10

What condition can cause this ECG?

Ventricular Fibrillation

11

What condition can cause this ECG?

1st degree heart block

12

What condition can cause this ECG?

Type 1 second degree heart block

13

What condition can cause this ECG?

Type 2 Second degree heart block

14

What condition can cause this ECG?

3rd degree heart block

15

What condition can cause this ECG?

Bundle branch block