Troubleshooting - GE Dash 2500 Operator's Manual

Troubleshooting

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NELLCOR® OXIMAX® SpO2: Troubleshooting
This section discusses potential difficulties and suggestions for resolving them. If
the difficulty persists, contact a qualified service person or contact your local
representative. The Dash 2500 Patient Monitor Service Manual (PN 2042481-001),
which is for use by qualified service personnel, provides additional
troubleshooting information.
PROBLEM: The signal strength symbol tracks a pulse, but no oxygen saturation
or pulse rate values appear on the screen.
CAUSE:
Excessive patient motion may be making it impossible for the SpO
parameter to find a pulse pattern.
The sensor may be damaged.
The patient's perfusion may be too low to allow the SpO
measure saturation and pulse rate.
The sensor may be incorrectly position.
The sensor site may be too thick, too thin, or deeply pigmented or
otherwise deeply colored (for example as a result of externally applied
coloring such as nail polish, dye or pigmented cream) to permit
appropriate light transmission. If any of these situations occurs,
reposition the sensor or choose an alternate NELLCOR
on a different site.
SOLUTION:
Check the patient.
If possible, keep the patient still; check whether the sensor is applied
securely and properly and replace it if necessary; move the sensor to a
new site; use a sensor that tolerates more motion.
Replace the sensor.
PROBLEM: The SpO value or the pulse rate changes rapidly; the signal strength
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symbol is erratic.
CAUSE:
Excessive patient motion may be making it impossible for the SpO
parameter to find a pulse pattern.
An electrosurgical unit (ESU) may be interfering with performance.
SOLUTION:
Check the patient.
If possible, keep the patient still; check whether the sensor is applied
securely and properly and replace it if necessary; move the sensor to a
new site; use a sensor that tolerates more motion.
If an ESU is interfering:
1. Move the SpO cable as far from the ESU as possible.
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2. Plug the Monitor and the ESU into different AC circuits.
Dash 2500 Patient Monitor
2
parameter to
2
®
sensor for use
2
2042480-001 C