User's Manual

6-2
Rad-87 Pulse CO-Oximeter Operator’s Manual
6
Troubleshooting
PROBLEM POSSIBLE CAUSE(S) RECOMMENDATION(S)
Low SIQa and
flashing RRa
parameter*
Low confidence in RRa
value (Last confident value
displayed).
May occur during patient
activity (e.g. talking).
Check for proper sensor placement.
Reduce patient activity. Reduce excessive ambient or
environmental noise.
Low RI
Improperly applied sensor.
Patient may have shallow
breathing.
Assess the patient.
SpO
2
values do
not correlate with
clinical assess-
ment Or abgs.
Low perfusion or sensor
displacement.
Check for error messages. See section 5 Messages for
recommended corrections
Check placement of sensor or if it is too tight. Reapply
sensor or select a new site.
Set to MAX sensitivity and confirm that the sensor is
securely on the patient
Refer to sensor's Directions For Use.
Pulse Search
message
Instrument is searching for
pulse.
If instrument fails to display within 30 seconds,
disconnect and reconnect sensor to patient. If pulse
search continues, move sensor to better perfused site.
Unexpected SpO
2
,
SpCO, SpMet Or
SpHb reading
Low SIQ or Perfusion Index (PI)
values.
Reposition sensor to site with strong SIQ and PI. Submit
blood sample for laboratory CO-Oximetry test for
comparison.
Inappropriate sensor size or
sensor measurement location.
Verify proper sensor for patient size. Verify proper sensor
site.
Unexpected High
SpCO reading
Possible elevated
methemoglobin level.
Submit blood sample for laboratory CO-Oximetry test.
Difficulty Or No
SpO
2/
SpCO/
SpMmet/SpHb
reading
Low battery/ not plugged into
AC power supply.
Connect the AC power cord to the Rad-87 and to an AC
outlet. Make sure that the AC power indicator light is on.
Excessive motion. Minimize or eliminate motion at the monitoring site.
Interference from line-frequency
induced noise.
Verify/set 50/60Hz menu setting. See section 3, Rad-87
Power Requirements.
Inappropriate sensor or sensor
size.
Verify proper sensor and sensor size for the patient.
Excessive ambient or strobing
light.
Shield the sensor from excessive or strobing light.
Also, see Section 4, Successful Monitoring for additional information.
Print Function
does not work
Wrong serial cable is used. Make sure a null modem cable is used.
Wireless Radio
no connection
Radio off. Confirm the wireless radio is on.
Network settings are not
configured correctly.
Confirm wireless network settings.
No/inadequate wireless
coverage.
Confirm wireless coverage.
* If a confident RRa value has not been detected after 5 minutes, the RRa value will display as double dashes (- -) and
an audible alarm will become active. This will occur if the acoustic channel is the primary channel and also when RRa
Sensor Status Notifications are set to 'On'.