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Philips FM20/30 Instructions For Use Manual Page 162

Release j.3 with software revision j.3x.xx patient monitoring.
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12 Monitoring Twin FHRs
Switching Trace Separation On and Off
Connect transducers to the monitor to measure FHR. Depending on the measurement method, you
need either two ultrasound transducers or, for FM30/FM50, one ultrasound and one Toco
or one CL ECG/IUP transducer (to monitor DECG):
Enter the
1
Select
2
3
Select
Exit the
4
Separation Order Type
In Configuration Mode, you can choose between two methods,
the trace offsets on the recording (the order in which they are separated) when
Standard
No offset is ever applied to the FHR1 trace - it stays where it is. (In case of a third FHR, this is
shifted down by 20 bpm.)
Classic
No offset is ever applied to the FHR2 trace - it stays where it is. (In case of a third FHR, this is
shifted down by 20 bpm.)
When Trace Separation is On
When trace separation is turned on, the recorder prints a dotted line labeled with the two FHRs at the
top, and +20 at the bottom.
Examples of the two methods (
provided here.
"Standard" Separation Order
To make differentiating the traces easier, the trace from the ultrasound transducer connected to the
FHR2 channel is separated from that of FHR1 by 20 bpm. In other words, the trace for FHR2 is
recorded 20 bpm higher than it really is. The trace for FHR1 is never shifted.
The recorder prints a dotted line labeled +20 across the FHR scale, to identify the trace for FHR2. The
FHR trace is labeled +20 every 5 cm:
The label for FHR2 is annotated with a black filled +20:
162
menu by pressing the
Main Setup
.
Fetal Recorder
to toggle between
Trace Separation
menu.
Main Setup
: the FHR2 trace is shifted up by 20 bpm (it is recorded 20 bpm higher than it really is).
: the FHR1 trace is shifted up by 20 bpm when there is more than one FHR measurement.
Standard
.
Main Setup
and
.
On
Off
Standard
,
) for determining the trace separation order are
Classic
+
transducer,
and
, for dealing with
Classic
is
Trace Separation
.
On

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