16-8 250cx Series Maternal/Fetal Monitor Revision C
2036946-001
Troubleshooting: Maternal Pulse Oximetry Troubleshooting
Maternal Pulse Oximetry Troubleshooting
COMM ERROR message displayed in
NIBP area of display.
Communication error between the built-in
NIBP parameter and the remainder of the
monitor circuitry.
Call Biomedical Engineering Department.
MOTION message displayed in NIBP area
of display.
Excessive maternal movement.
Maximum reading determination time
exceeded.
Talk to patient about the importance of
minimizing limb movement.
Reposition cuff.
Check patient for arrhythmia. Move cuff
to another limb.
REPAIR message display in NIBP area of
display.
System error or self-test failure. Contact Biomedical Engineering
Department.
WEAK SIGNAL? message Monitor unable to make a determination
due to insufficient signal.
Assess patient situation.
Maternal Pulse Oximetry Troubleshooting
Problem Probable Cause Possible Solution
Dashes (– – –) shown in MSpO
2
display
area.
Monitor unable to make a determination
due to insufficient signal.
Improperly applied sensor.
Excessive maternal movement.
Excessive ambient light.
Damaged sensor
Check patient. The patient may be
experiencing shock, hypotension, severe
vasoconstriction, severe anemia,
hypothermia, arterial occlusion proximal
to the sensor, or cardiac arrest.
Ensure that the intermediate cable is
firmly attached to the monitor and to the
sensor assembly.
Ensure sensor is not too tight. Move
sensor to another location.
Restrict patient limb movement. Restrain
limb if necessary.
Cover sensor with opaque material.
Replace sensor.
REPAIR message shown in MSpO
2
area of
display.
System error or self-test failure. Contact Biomedical Engineering
Department.
SENSOR message shown in MSpO
2
area
of display. (Nellcor only)
Wrong MSpO2 cable and/or sensor
connected to the monitor.
Check the type of MSpO
2
technology your
monitor contains (the label next to the
lower, right-hand side of the display) and
use the corresponding cables and sensors
for that technology.
Blood Pressure Troubleshooting
Problem Probable Cause Possible Solution
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