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Philips FM20/30 Instructions For Use Manual Page 177

Release j.3 with software revision j.3x.xx patient monitoring.
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External Toco Monitoring
Problem
Quality of the trace deteriorates
or the Toco baseline varies
Toco sensitivity is too high
(above 100 units)
Toco trace is exceeding the paper
scale
is displayed.
Toco Equip Malf
is displayed.
Toco Unplugged
If you suspect the signal from the transducer.
Possible Causes
The belt is incorrectly fastened and is
too slack or too tight, or the belt has lost
its elasticity.
Fetal movement
Maternal respiration superimposed on
trace
Maternal movement/change of position Following maternal movement, reset
Physical transmission of pressure from
the uterus to the sensor is much higher
than the average value.
15 Monitoring Uterine Activity Externally
Solutions
The belt must be tight enough to ensure
good contact between the patient's skin
and the entire surface of the transducer
without causing discomfort. Ensure you
are using the correct belt. Adjust it as
necessary.
Check if the belt is correctly fastened
and adjust it as necessary. Reposition the
transducer and reset the Toco baseline if
necessary.
Check if belt is not too loose.
Toco baseline
Check if the belt is too tightly fastened.
Select 50% Toco sensitivity.
See "Patient Alarms and INOPs" on
page 113.
See "Patient Alarms and INOPs" on
page 113.
Test the Transducer (see "Testing Toco
Transducers" on page 178 below).
177

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Avalon clFm40/50

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