Philips IntelliVue TRx, Instructions For Use Manual

Page: 131 / 274

Draft - 1 Aug 08
ST/AR Arrhythmia Algorithm
ST/AR Arrhythmia Monitoring 7-3
Warning Warning
Relearning
Arrhythmia relearning is initiated whenever the transceiver is powered
down for one minute or longer or whenever it is directly connected/
disconnected to an IntelliVue MP5 Patient Monitor. Be sure to check your
patient’s arrhythmia annotation for accuracy whenever relearn has
occurred.
Since Relearn happens automatically, if learning takes place during
ventricular rhythm, the ectopics can be incorrectly learned as the normal
QRS complex. This can result in missed detection of subsequent events of
V-Tach and V-Fib. For this reason, you should:
1. Respond promptly to any technical alarm.
2. Ensure that the arrhythmia algorithm is labeling beats correctly.
When using EASI ECG monitoring, Relearn happens automatically when
there is a LEADS OFF technical alarm. If learning takes place during
ventricular rhythm, the ectopics can be incorrectly learned as the normal
QRS complex. This can result in missed detection of subsequent events of
V-Tach and V-Fib. Be sure to check the beat labels and initiate a relearn to
correct.
1. Respond to the technical alarm [for example, reconnect the electrode(s)].
2. Ensure that the arrhythmia algorithm is labeling beats correctly.
For Paced
Patients
Warning Warning
Some pace pulses can be difficult to reject. When this happens, the pulses
are counted as a QRS complex, and could result in an incorrect HR and
failure to detect cardiac arrest or some arrhythmias. Keep pacemaker
patients under close observation.