Philips IntelliVue TRx, Instructions For Use Manual

Page: 121 / 274

Draft - 1 Aug 08
Monitoring during Leads Off
ECG Monitoring 6-27
During routine monitoring, the electrode indicators also notify you if one or
more leads are not functioning. When a "Leads Off" condition occurs, the
transceiver automatically illuminates the indicator corresponding to the missing
lead.
Note— Should the lead in the reference lead placement position (standard mode
- RL; EASI mode - green) become disconnected, the ECG signal is lost entirely.
After 10 minutes of this leads off condition, without the SpO
2
sensor connected,
the transceiver will enter an RF Auto Shutoff state (if enabled). To correct the
condition, re-attach the lead to the electrode.
Monitoring during Leads Off
ECG Fallback and Extended monitoring states are supported for the transceiver
when the primary and/or secondary leads are in a "Leads Off" INOP condition.
Both of these states are entered into after 10 seconds of "Leads Off" in an
attempt to maintain monitoring and arrhythmia analysis.
ECG
Fallback
ECG Fallback occurs when the primary lead is in "Leads Off" for 10 seconds
and a secondary lead is available.
Multilead
Analysis
If there is a "Leads Off" technical alarm in the primary lead for > 10 seconds,
the active secondary lead becomes the primary lead. The arrhythmia algorithm
switches the leads on the display, but relearn does not occur. When the "Leads
Off" condition is corrected, the leads are switched back to their original state.
Single Lead
Analysis
For single lead analysis, if there are two leads available, the secondary lead is
made the primary lead until the "Leads Off" condition is corrected. The
arrhythmia algorithm performs a relearn using the available lead.