What is an electrocardiograph (ECG)machine?
An electrocardiograph machine is a device that measures
and records electrical activity in the heart by the use
of ECG pads placed on the chest and connected to wires,
call leads. The leads are connected to a bedside monitor
where the information is displayed. ECGs are usually
measured in at least one view (i.e., one line on the
monitor). Many doctors and nurses want more than one
view, often as many as twelve views, also called leads.
To measure these different views, ECG pads are placed on
several parts of the body. The nurse determines where to
place these pads based on the view of the heart that is
desired.
When is an ECG machine used?
The type of ECG machine shown in the upper picture is
used continuously on most patients in the ICU.
Does an ECG machine hurt?
No.
Are there any potential
complications associated with use of an ECG machine?
No.
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ECG tracing displayed on a monitor in
green with a heart rate of 118
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Close up of paper ECG tracing
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Electrocardiograph (ECG or EKC)
Machine 
