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Gabriel Wilson——Works at the International Criminal Court, Lives in The Hague, Netherlands.
As a medical professional with expertise in cardiology, I can provide you with information on the bipolar leads in an electrocardiogram (ECG). An ECG is a non-invasive test that measures the electrical activity of the heart, which is represented by waves on a graph. The test uses 12 leads, which are combinations of electrodes placed on the limbs and chest to capture different views of the heart's electrical activity.
Bipolar leads are those that use two electrodes to record the electrical potential difference between two points. In the context of an ECG, the bipolar leads are:
1. Lead I: This lead uses the left arm (LA) and right arm (RA) electrodes to record the electrical activity between these two points.
2. Lead II: It records the potential difference between the right arm and left leg (LL).
3. Lead III: This lead captures the difference between the left arm and left leg.
These leads are considered bipolar because they each use two electrodes to measure the electrical activity between two specific points on the body. The other leads (aVR, aVL, aVF, V1 through V6) are either unipolar or augmented limb leads, which use different configurations of electrodes.
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Ruby Flores——Studied at University of Sydney, Lives in Sydney, Australia
A 12-lead ECG consists of three bipolar limb leads (I, II, and III), the unipolar limb leads (AVR, AVL, and AVF), and six unipolar chest leads, also called precordial or V leads, ( , , , , , and ). Below is a sample of a 12-lead EKG tracing.read more >>
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