Basics: Difference between revisions
→The Extremity Leads
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The extremity leads are: | The extremity leads are: | ||
*'''I''' from the right | *'''I''' from the right to the left arm | ||
*'''II''' from the right arm to the left leg | *'''II''' from the right arm to the left leg | ||
*'''III''' from the left arm to the left leg | *'''III''' from the left arm to the left leg | ||
An easy rule to remember: lead '''I''' + lead '''III''' = lead '''II''' | An easy rule to remember: lead '''I''' + lead '''III''' = lead '''II''' | ||
This is | This is done with the use of the height or depth, independent of the wave (QRS, P of T). | ||
Example: if in lead I, the QrS complex is 3 mm in height and in lead III 9mm, the height of the QRS-complex in lead II is 12mm. | Example: if in lead I, the QrS complex is 3 mm in height and in lead III 9mm, the height of the QRS-complex in lead II is 12mm. | ||
Other | Other extremity leads are: | ||
*'''AVL''' points to the left arm | *'''AVL''' points to the left arm | ||