GE Corometrics 250cx Series, Operator'S Manual

Page: 161 / 250

Revision C 250cx Series Maternal/Fetal Monitor 14-3
2036946-001
Waveforms: Waveform Area
Waveform Area
The waveform area displays approximately 4 seconds of waveform data from one of
the following: FECG, MECG, or MSpO
2
. The waveform chosen for display is
independent of any of the numerics shown on the display.
For example: MSpO
2
can be chosen as the maternal pulse rate source (numerics)
while the MECG waveform is selected for display in the waveform area.
CAUTION
WAVEFORM INTERPRETATION—Waveforms generated by
the 250cx Series Monitor are not intended for true diagnostic
interpretation.
Selecting the Waveform
Use the Waveform softkey on the normal operating screen to select
FECG
,
MECG,
MSpO2, or Off.
(Refer to Figure on page 14-4.)
Waveform Speed
All waveforms are displayed at a rate of 25mm/sec. This speed is not adjustable. The
speed is displayed at the top right of the waveform.
ECG Size
The size is printed in the upper right above the waveform. This label is also a softkey
which can be used to change the setting. Select from the following:
0.25x (4 mV/cm),
0.5x (2.0 mV/cm), 1x (1.0 mV/cm), 2x (0.5 mV/cm), 4x (0.25 mV/cm),
or
Auto
.
MECG Lead Select
The selected lead is displayed in the upper right above the waveform. This label is
also a softkey which can be used to change the setting. Select from the following:
I,
II,
or
III.
NOTE:
The MECG lead can also be changed from the
MHR/P Setup
screen.
MECG Pacer Label
When the
MECG Pacer
option is enabled (
On
), the letter
P
is displayed prior to the
waveform speed. See Figure on page 7-6.