Flashcards in Axis Deck (11):

1

## The position of the mean QRS vector

### Axis

2

## Normal axis

### Points downward and to the left

3

## To determine axis deviation look at which leads

### Lead I and AVF

4

## In lead I if the QRS is mainly positive (above the line) then the mean QRS axis points...

### To the left. Towards the positive electrode on the patients left arm

5

## In the AVF lead if the QRS is mostly positive (upright) then the mean QRS vector is pointing...

### Down towards the positive electrode on the patients left foot

6

## If the QRS in lead I is mostly negative (below the baseline) then the mean QRS vector points

### To the right towards the negative electrode on the patients right arm. This is known as right axis deviation

7

## If the QRS is positive in lead I and negative in AVF this is...

### Left axis deviation

8

## When the isoelectric QRS has rotated to leads V1 and V2 this is known as

### Rightward rotation

9

## When the isoelectric QRS is found in leads V5 and V6 this is known as

### Leftward rotation

10

## Axis deviation is in the

### Frontal plane

11