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Philips HeartStart XL Plus 861290 Instructions For Use Manual Page 64

Defibrillator monitor.
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Arrhythmia Monitoring
Arrhythmia learning/relearning automatically occurs when:
The Therapy knob is turned to
Any time there is a change in the lead selection for Wave Sector 1.
After the correction of a leads or pads off condition that has been active longer than 60 seconds.
Initiate manual relearning if the beat detection is not occurring or if beat classification is incorrect and
results in a false alarm. Remember if the same signal condition which caused the algorithm to perform
poorly still exists, relearning does not correct the problem. The problem can only be corrected by
improving the signal quality (e.g., selecting a different lead).
To initiate relearning manually:
1
Press the Menu Select button.
2
Using the Navigation buttons, select
Select
3
Select
4
Learning ECG
WARNINGS: If arrhythmia relearning takes place during a ventricular rhythm or during a period of poor ECG signal
quality, ectopic beats may be incorrectly learned as the normal QRS complex. This may result in missed
detection of subsequent events of V-tach and high PVC rates. For this reason you should:
Take care to initiate arrhythmia relearning only when the ECG signal is noise-free.
Be aware that arrhythmia relearning can happen automatically.
Respond to any messages (e.g., if you are prompted to reconnect electrodes).
Display an annotated wave to ensure the beat labels are correct.
Pacemaker Pulse Rejection: When arrhythmia monitoring paced patients who exhibit only intrinsic
rhythm, the monitor may erroneously count paced pulses as QRS complexes when the algorithm first
encounters them, resulting in missed detection of cardiac arrest. Be sure that the paced status is set
correctly on the device.
Some pace pulses can be difficult to reject. When this happens, the pulses are counted as a QRS complex,
and could result in incorrect HR and failure to detect cardiac arrest or some arrhythmias. Keep
pacemaker patients under close observation. See Specifications
Pacemaker Pulse Rejection Capability.
NOTES: It is important to set the patient's correct paced status in order to optimize ECG analysis.
For more information on arrhythmia analysis, refer to the Application Note "Arrhythmia Monitoring
Algorithm for HeartStart XL+" available on the Philips website at
HR/Arrhythmia
and press the Menu Select button.
Relearn Rhythm
and press the Menu Select button.
Learning Rhythm
and
Monitor
Pacer, AED
Manual Defib
,
or
Measurements/Alarms
messages appear in the bottom portion of Wave Sector 1.
Chapter 18
www.philips.com/ProductDocs.
4: ECG Monitoring
.
and press the Menu Select button.
on page 195 for details on
53

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