Homework Answers
1. There are 12 leads calculated with 10 electrodes.
these are furthur classified a limb leads and precordial leads /chest leads.
A lead is the picture of the heart from a particular angle . the 12 leads are the 12 different pictures of the heart and the 10 electrodes capture that picture.
The 10 electrodes are :
LA
RA
RL
LL
V1
V2
V3
V4
V5
V6
The 12 leads and the 10 electrodes and the corresponding pictures of the heart are :
| lead | electrode (+) | electrode (-) | view |
| lead 1 | LA | RA | Lateral |
| lead II | LL | RA | Inferior |
| lead III | LL | LA | Inferior |
| aVR | RA | LA+LL | None |
| aVL | LA | RA+LL | Lateral |
| aVF | LL | RA+LA | Inferior |
| V1 | SEPTAL | ||
| V2 | SEPTAL | ||
| V3 | ANTERIOR | ||
| V4 | ANTERIOR | ||
| V5 | LATERAL | ||
| V6 | LATERAL |
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