What is an EKG? What does it show?

Answer 1

EKG, or ECG, is short for electrocardiogram.

An EKG shows the electrical activity of the heart. By looking at the tracing, we are able to see whether a patient has any abnormalities in the heart rhythm, or any signs of ischemia (heart not getting enough oxygen) or infarction (dead heart muscle, previous heart attack).

The EKG doesn't tell us everything about the heart, though, as it is only looking at the electrical activity. We also use echocardiograms, nuclear imaging studies and cardiac catheterizations to give us more information about the heart.

Hope that helps.

Answer 2

Current actually flows in many cells in the body in the form of ACTION POTENTIALS. These cells include neurons, muscle cells, and heart muscle fibers (type 1 and type 2).

Heartbeat is initiated in the SA node, and travels from the SA node, through the cells of the atria, across the AV node, bundle of HIS, and purkinje fibers, and into the ventricles, causing the muscle fibers to contract.

The SA node, AV node, and Purkinje Fibers of the heart fire completely on their own. If the heart were removed from the body (and given proper nutrition) it could beat forever.

So, what an EKG does, is by voltage readers placed in various places, detects the current (ACTION POTENTIALS) moving from the SA node all the way through to the ventricles. Each part of the EKG cycle corresponds to a different part of the cardiac cycle.

Answer 3

EKG means Electrocardiogram,
it shows the graph of the electrical voltage in the heart .

Answer 4

Also known as ECG, internationally, is Electrocardiogram,,
it measures the eletrical activity of the heart - by means of the instrument and its probes.
The heart muscles function due to electrical energy - so the norm of the electrical graph obtained (a print out) - represents the norm of the heart function.

Answer 5

Electro Kardeo Gram

Heart rhythm

Answer 6

Your heart rhythm