A3.4 Trouble With Ultrasound Fhr Monitoring; A3.5 Troubles With Decg Monitoring - EDAN F9 User Manual

F9, F9 Express Fetal & Maternal Monitor User Manual

A3.4 Trouble with Ultrasound FHR Monitoring

Phenomenon
Inconstant trace
/ display
Doubtful FHR
Faint trace or no trace

A3.5 Troubles with DECG Monitoring

Phenomenon
Inconstant trend
Inconstant display
Inconstant trend
Possible Cause
The patient is overweighted.
Improper ultrasound transducer
position.
Loose belt.
Superfluous aquasonic coupling
gel.
Frequent fetal movements.
Maternal movement.
Inadequate aquasonic coupling
gel.
Record maternal
wrongly.
The transducer is not well placed
in position, and the mixed noise
has been recorded.
Improper paper.
The paper drawer is not locked.
Adjusting nuts of the print head
are unbalanced.
Possible Cause
No ECG signal
Bad contact of reference electrode
and patient
The DECG cable has not been
fixed firmly
- 173 -
Monitor FHR with DECG.
Adjust
transducer till the better signal is
received.
Tighten the belt.
Wipe off superfluous aquasonic
coupling gel.
Delay the monitoring.
Request the patient to calm down
and stay still.
Use recommended
coupling gel quantity.
heart rate Change
ultrasound transducer.
Adjust
transducer.
Use paper recommended
by manufacturer
Slide the paper drawer in until
both
position.
Contact the manufacturer for
service.
Use a new spiral electrode
Use a new spiral electrode
Fix an attachment pad at the
DECG cable.
Troubleshooting
Solution
the position of
aquasonic
the position of
the position of
latches are locked
Solution
the
the
the
in