:: Why is it called the "right leg driver"?

Because it is attached to the right leg of the subject.

The right side signal is negative to the left arm signal - in other words=20
the left arm sensor is the + connection, the right arm sensor is a -=20
connection as is the right leg.  In a full ECG machine there are normally=20
either 12 or 15 leads.=20

An ECG machine for the above set up takes an average of the signal between=
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the two negative connections and the positive left wrist.

Over time the positions of the lead placements has become standardised to=20
allow proper comparisons of data obtained.



Colin
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cdb, colin@btech-online.co.uk on 30/01/2011
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