Upload
adam-thompson
View
1.194
Download
1
Embed Size (px)
DESCRIPTION
Citation preview
12-Lead Electrocardiography
a comprehensive course
Adam Thompson, EMT-P, A.S.
Axis: The
Quadrant
Method
Quadrant Method
• Much easier to do. • Faster and more practical for rapid
interpretation. • Does not give you a very close
estimate.
Quadrant Method
ERAD LAD
RAD Normal
180 0
-90
90
Quadrant Method
ERAD LAD
RAD Normal
- I I +
aVF +
aVF -
Quadrant Method
- I I +
aVF -
Negative QRS Complex in aVF Positive QRS Complex in aVF
aVF +
- I I +
aVF +
aVF -
Positive QRS in Lead I
Negative QRS in Lead I
Quadrant method
Is Lead I up or down?
Quadrant Method
- I I +
aVF +
aVF -
Quadrant method
Is aVF up or down?
Quadrant Method
- I I +
aVF +
aVF -
Quadrant Method
- I I +
aVF +
aVF -
ERAD LAD
RAD Normal
180 0
-90
90
Quadrant Method
Frontal Plane Axis Pathologies
Quadrant Method
Lead I aVF
Normal Positive (+) Positive (+)
RAD Negative (-) Positive (+)
LAD Positive (+) Negative (-)
ERAD Negative (-) Negative (-)
If all else fails…
That’s It