8-22 Passport 12/Passport 8 Operator’s Manual
8.9 ECG Relearning
8.9.1 Initiating an ECG Relearning Manually
During ECG monitoring, you may need to initiate an ECG relearning when the patient’s ECG template changes
dramatically. A change in the ECG template could result in:
Incorrect arrhythmia alarms
Loss of ST measurement, and/or
Inaccurate heart rate
ECG relearning allows the monitor to learn the new ECG template to correct arrhythmia alarms and HR value, and restore
ST measurements. To initiate relearning manually, select the ECG parameter window or waveform area → [Relearn].
When the monitor is learning, the message [ECG Learning] is displayed in the technical alarm area.
WARNING
Initiate ECG relearning only during periods of normal rhythm and when the ECG signal is relatively
noise-free. If ECG learning takes place during ventricular rhythm, the ectopics may be incorrectly learned as
the normal QRS complex. This may result in missed detection of subsequent events of V-Tach and V-Fib.
8.9.2 Automatic ECG Relearning
ECG relearning is initiated automatically whenever:
The ECG lead or lead label is changed.
The ECG lead is re-connected.
A new patient is admitted.
After the ECG calibration is completed, and [Stop Calibrating ECG] is selected.
A switch happens between the options of screen type during 5-lead ECG monitoring.
The paced status of the patient is changed.