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A member asked:
Can you, please, explain why is it, that st elevation in lead iii greater than the one in lead ii is suggestive of mi?
A doctor has provided 1 answer
ECG: ST elevation is a vector representation of electrical force. The lead 3 direction usually has less muscle mass than the lead 2 direction. There is no firm rule however only a suggestion because of anatomical variations.
Answered 12/28/2015
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