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Troubleshooting - Philips FM20/30 Instructions For Use Manual

Release j.3 with software revision j.3x.xx patient monitoring.
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Troubleshooting

Problem
Erratic trace
Erratic display
Signal quality indicator is
continuously poor
Questionable FHR
FHR not recorded
or
FHR1 Equip Malf
FHR2 Equip Malf
or
FHR1 Signal Loss
FHR2 Signal Loss
displayed.
or
FHR1 Unplugged
FHR2 Unplugged
displayed.
If you suspect the transducer is malfunctioning
Possible Causes
Fetal arrhythmia
Obese patient
Transducer position not optimal
Belt loose
Too much gel
Very active fetus
Insufficient gel
Transducer position not optimal
FHR less than 50 bpm (and the FHR is
audible)
Recording MHR by mistake
Recording periodic signals when the
transducer is not applied to the patient
Recorded FHR appears to be suspiciously
higher, or suspiciously lower, than real FHR.
In very rare cases, half- or double-counting
of the FHR can occur.
FHR is less than 50 bpm or over 240 bpm
or
FHR3 Equip Malf
or
FHR3 Signal Loss
or
FHR3 Unplugged
11 Monitoring FHR and FMP Using Ultrasound
Solutions
Consider monitoring FHR using DECG after
the rupture of membranes.
Reposition transducer until signal quality
indicator shows a good signal (at least
half-full).
Tighten belt
Remove excess
Use enough gel to ensure the transducer
makes good contact with the mother's skin.
Reposition transducer until signal quality
indicator shows a good signal (at least
half-full).
If membranes are ruptured, using a fetal scalp
electrode (FM30 and FM50 only) allows
measurement of FHR down to 30 bpm.
Reposition transducer
Confirm fetal life
Disconnect all NON-USED ultrasound
transducers, as continuous, regular
mechanical, or electromagnetic influences can
result in an artificial trace.
If you have reason to question the validity of
the recorded FHR, always verify FHR by
independent means (by auscultation, for
example). Measure maternal pulse by
independent means.
If membranes are ruptured, using a fetal scalp
electrode (FM30 and FM50 only) allows
measurement of FHR down to 30 bpm.
If FHR is outside of the specified range, verify
FHR by independent means.
INOP displayed. See "Patient Alarms and INOPs" on
page 113.
INOP
INOP
Test the transducer.
-
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Avalon clFm40/50

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