6 ECG, Arrhythmia, ST and QT Monitoring
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If alarm conditions of equal severity from different chains are detected, the alarm condition that
occurred most recently is announced.
See “ECG and Arrhythmia Alarm Overview” on page 149 for information on which alarms are
included in the different arrhythmia options. See “Arrhythmia Alarm Timeout Periods” on page 161
for an explanation of how alarm timeouts work.
Examples of Alarm Chaining Logic
– If there is an active Vent Bigeminy alarm, a PVCs > xx/min will not be triggered because it is
lower on the same chain. However, a high HR alarm will become active because it is on a
different chain.
– Higher priority alarms supersede previous alarms. For example, if a Vent Trigeminy alarm is
active and a Pair PVCs occurs, the Pair alarm will be activated.
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