Signal Quality Alarms; Active Signal Quality Alarm; Resolved Signal Quality Alarm; 100% Signal Loss - GE Corometrics 170 Series Operator's Manual

Signal Quality Alarms

Active Signal Quality Alarm

Resolved Signal Quality Alarm

100% Signal Loss

5-12
Fetal Heart Rate Monitoring: Fetal Heart Rate Alarms
A fetal heart rate signal quality alarm occurs if the monitor is unable to detect an
acceptable FHR signal.
Signal quality alarms are indicated both visually and audibly. The
illuminates and dashes "– – –" display in the affected fetal heart rate display.
The audio alarm is described as alternating high-low tones.
As soon as an alarm condition is resolved, both the visual and audible indications
automatically disappear.
In cases where there is a complete absence of signal, the signal quality time-to-alarm
is 1.25 minutes. See Figure
FHR (BPM)
1
Figure 5-8. 100% Signal Loss Example
170 Series Monitor
2003023-001
5-8.
100% signal loss
1.25 min
alarm activated
3 4 5
2
Alarm indicator
Time (minutes)
Revision D