Bayer HealthCare Rapidlab 800 - Manual (Page 387)

4Ć99 Troubleshooting the System
Problem Probable Cause and Solutions
? is printed next
to the CO-oximeter results
on reports Optical measurements indicate that the CO-oximeter
results should be reviewed.
Results may still be clinically valid. When reporting
CO-oximeter results, consider the patient’s history and
clinical condition to determine acceptability of results.
To troubleshoot an If Blood, Question Data message,
determine whether the problem is with the sample type,
the patient sample, or the system.
NOTE: When analyzed as a patient sample, aqueous
materials with dyes cause the If Blood, Question Data
message to appear.
1. Ensure that you analyzed a patient sample, not a QC
or calibration sample. Ensure that the patient sample
is free of clots and unidentified interfering substances.
2. If the problem is not with the sample type, analyze the
sample again.
3. If the message reappears, perform a pH/lytes
one-point calibration to zero the CO-oximeter.
If the calibration . . .
is successful
is not successful
Then . .
go to step 5.
repeat the pH/lytes
one-point calibration
two more times.
(Continued)