Arrhythmia Monitoring Monitoring ECG, Arrhythmia, ST and QT
7 - 20 TM80 Telemetry Monitor Operator’s Manual
7.7 Arrhythmia Monitoring
Arrhythmia monitoring is intended for adult and pediatric patients.
7.7.1 Arrhythmia Safety Information
WARNING
• Heart rate reading may be affected by cardiac arrhythmias. Do not rely
entirely on heart rate alarms when monitoring patients with arrhythmia.
Always keep these patients under close surveillance.
• The arrhythmia analysis program is intended to detect ventricular
arrhythmias and atrial fibrillation. It is not designed to detect atrial or
supraventricular arrhythmias. It may incorrectly identify the presence or
absence of an arrhythmia. Therefore, a physician must analyze the
arrhythmia information with other clinical findings.
CAUTION
• Since the arrhythmia detection algorithm sensitivity and specificity are
less than 100%, sometimes there may be some false arrhythmias
detected and also some true arrhythmia events may not be detected.
This is especially true when the signal is noisy.
• The ECG size and minimum QRS detection threshold settings affect
arrhythmia detection and heart rate calculation sensitivity.
• If QRS amplitude is low, the monitor might not be able to calculate heart
rate and false asystole calls may occur.During the learning phase of the
algorithm, arrhythmia detection may not be available. So you should
closely monitor patient condition during and for several minutes after
the learning phase to allow the algorithm to reach optimal detection
performance.
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