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What is a 12 lead placement?

Electrode placement for a 12-lead ECG is standard, with leads placed on the left and right arm and left and right leg. Another pair of electrodes is placed between the fourth and fifth ribs on the left and right side of the sternum. A single electrode is positioned between this pair of electrodes on the fourth intercostal space.

Is there a difference between an ECG and an EKG?

The fact of the matter is that an ECG and an EKG are the exact same thing. That’s right, the most surprising difference between an ECG and an EKG is that there is no difference at all. Both ECG and EKG stand for electrocardiogram.

What is a cardiac vector?

A vector is a physical quantity which has both magnitude and direction in space. Movement of electrically charged particles – which occur during spread of the cardiac action potential – generates an electrical vector. The depolarization propagates through the myocardium similar to the spread of a wave front in water.

What is an EKG 12 lead?

The most common test is a 12-lead EKG test. This test uses 10 electrodes to generate 12 different views of the heart's electrical activity. As an initial diagnostic test, your healthcare provider will probably order a resting 12-lead EKG (an EKG when your heart is at rest).


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