Ultrasound Troubleshooting; Fecg Troubleshooting - GE Corometrics 250 Series Service Manual

Ultrasound Troubleshooting

Problem
Ultrasound not functioning properly.
Static noise on ultrasound.
Rate on FHR area of display and FHR
trend on strip chart paper do not correlate.

FECG Troubleshooting

Problem
Internal FECG erratic or not recording
properly.
Rate in FHR area of the display and the
FHR trend on the strip chart paper do not
correlate.
Revision D
Troubleshooting: General Troubleshooting
Table 23. Ultrasound Troubleshooting
Probable Cause
Transducer not properly connected to
monitor.
Transducer placement.
Too little gel applied to transducer.
Defective transducer.
Active fetus or mother. Fetal arrhythmia
or hiccups. Extreme maternal obesity.
No signal.
Service required.
Active fetus.
Environmental noise.
Maternal movement.
Defective transducer.
Paper Scale is incorrectly configured to
either 50-210 bpm or 30-240 bpm.
Table 24. FECG Troubleshooting
Probable Cause
Transducer not properly connected to
monitor.
Attachment pad or legplate not securely
attached to patient.
Electrode wire not secure in
legplate post.
Paste is dried or incorrect paste is being
used.
Electrode not properly attached.
No FECG signal.
Defective electrode.
Defective attachment pad.
Service required.
Paper Scale is incorrectly configured to
either 50-210 bpm or 30-240 bpm.
250 Series Maternal/Fetal Monitor
2020551-001
Possible Solution
Ensure that transducer is securely
attached to monitor.
Wait before moving transducer; FHR
often returns. Reposition transducer.
Apply more gel.
Replace transducer.
Use alternate technique.
Auscultate FHR.
Call Biomedical Engineering
Department.
Reposition transducer.
Keep sheets and gown off transducer.
Do not hold transducer with hand.
Use alternate monitoring mode.
Replace transducer.
Call Biomedical Engineering
Department.
Possible Solution
Ensure transducer is securely attached
to the monitor.
Secure attachment pad or legplate to
patient.
Inspect legplate connection.
Check ECG paste; re-apply, if
necessary.
Replace electrode.
Auscultate FHR.
Replace electrode.
Replace attachment pad.
Call Biomedical Engineering
Department.
Call Biomedical Engineering
Department.
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