Arrhythmia Alarms ECG – Arrhythmia
9 - 28 V Series Operating Instructions
9.7.2.2 QTc
The QTc alarm is activated when the current QTc value is either equal to or higher than the user
selected value for the high QTc alarm limit.
The QTc default alarm is a Medium level alarm event that produces:
• Medium level visual and audio alarm indicators.
•A QTc text message above the digital tile.
9.7.2.3 Couplet
The Couplet alarm is activated when two consecutive PVCs are detected between normal beats.
The Couplet default alarm is a Low level alarm event that produces:
• Low level visual and audio alarm indicators.
•A Couplet text message above the primary waveform area.
9.7.2.4 Irregular HR
The Irregular HR alarm is activated when the measured variations in the R-R interval over a period of
time exceeds a preset limit established by the arrhythmia algorithm.
The Irregular HR default alarm is a Low level alarm event that produces:
• Low level visual and audio alarm indicators.
•An Irregular HR text message above the primary waveform area.
9.7.2.5 Pause
The Pause alarm is activated when no beats are detected during 1.8 times or more of the current R-R
interval and the next beat is NOT a PVC.
The Pause default alarm is a Medium level alarm event that produces:
• Medium level visual and audio alarm indicators.
•A Pause text message above the primary waveform area.
9.7.2.6 Multiform PVC
The Multiform PVC alarm is activated when the over the last 15 beats two or more ventricular beats
with different morphologies are detected and no V-Tach, V-Rhythm, or V-Fib are detected.
The Multiform PVC default alarm is a Low level alarm event that produces:
• Low level visual and audio alarm indicators.
•A Multiform PVC text message above the primary waveform area.
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