User's Manual

Measuring ECG
ECG and Arrhythmia Monitoring 6-5
Measuring ECG
The electrocardiogram (ECG) measures the electrical activity of the heart
and displays it on the MX40 and the Information Center as a waveform and
a numeric.
In order to compare measured ECG signals, the electrodes (or patient
cables) are placed in standardized positions, forming "leads". To obtain
ECG signals optimized for use in diagnosis and patient management in
different care environments, different leadsets in varying lead placements
are used. Standard lead, Hexad and EASI lead placements can be used with
the MX40.
The Heart Rate calculation resides in the arrhythmia algorithm on the
MX40. Arrhythmia analysis is always turned on for telemetry patients.
Arrhythmia analysis is either Basic or Enhanced, depending on the product
configuration.