User's Manual

ST/AR Arrhythmia Monitoring
ECG and Arrhythmia Monitoring 6-35
Learning Phase
A learning phase involves the system learning the patient’s dominant
complexes. During a learning phase:
 Alarm timeout periods are cleared.
 Stored arrhythmia templates are cleared.
 Asystole, Vfib, and HR alarms (when there are enough beats to
compute the HR) are active.
 All other alarms are not active.
Single Lead Analysis
If single lead analysis is selected, the arrhythmia system begins learning
whenever:
 ECG monitoring is initiated.
 The Relearn Arrhy control is activated. See Initiating Arrhythmia
Relearning Manually p. 6-36.
 The ECG Lead or Lead Label is changed manually, or when Fallback
occurs. See Fallback.
 A "LEADS OFF" INOP condition (that has been active for >60 seconds)
ends.
 When the MX40 re-associates with the Information Center.
Multilead Analysis
If multilead analysis is selected, the arrhythmia system begins a learning on
both leads whenever:
 ECG monitoring is initiated.
 The Relearn Arrhy control is activated (see Initiating Arrhythmia
Relearning Manually p. 6-36).
 There has been a Leads Off INOP condition (that has been active for >60
seconds) for both leads, and the condition ends in either lead.
 When the MX40 re-associates with the Information Center.
Multilead Analysis With Changes in One Lead
Since the arrhythmia system uses more than one lead for analysis, if there is
a change in one lead, the system does a relearn only on the affected lead.
This happens whenever:
 An ECG lead or label is changed.