User's Manual

6-2 Radical-7R Pulse CO-Oximeter Operator’s Manual
6
PROBLEM
POSSIBLE
CAUSE(S)
RECOMMENDATION
LOW SIGNAL QUALITY
Improper sensor type
or application.
Excessive motion
relative to perfusion.
Sensor is damaged or
not functioning.
Check and see if blood flow to the site is
restricted.
Check the placement of the sensor.
Re-apply sensor or move to a different site .
SpO
2
VALUES DO NOT
CORRELATE WITH CLINICAL
ASSESSMENT OR ABGs
Low perfusion or
sensor displacement.
Check for error messages. See section
5 System 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 Directions For Use.
PULSE SEARCH MESSAGE
Instrument is searching
for pulse.
If instrument fails to display within 30
seconds, disconnect and reconnect. 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. Average readings taken from three
different sites to improve accuracy. 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.
UNEXPECTEDLY HIGH
SpCO READING
Possible elevated
methemoglobin level.
Submit blood sample for laboratory
CO-Oximetry test.
HANDHELD BATTERY
DOES NOT CHARGE
AC power cable may
be disconnected.
Restore power to the instrument.
LED LIGHTS ON LEFT SIDE
OF DOCKING STATION
CONTINUOUSLY FLASH
I ncompatible version of
software on Radical-7R
handheld and docking
station.
Upgrade to current software versions.
Match handheld to docking station with
compatible software versions.
BATTERY RUN-TIME IS
SIGNIFICANTLY REDUCED
Battery Memory effects .
Use Battery Discharge function as
described in Section 4, Service.
Troubleshooting
Troubleshooting (continued)