Beckman Coulter UniCel DxC 600 Instructions For Use Manual page 11

ISE Reagent Precautions
Failure to operate the system with sufficient ISE reagent causes erroneous chemistry results. In
some cases, results are obtained without reagents. Therefore, before starting a run, make sure that
sufficient reagent is available to complete the run.
MC Reagent Stir Bar Precautions
When cleaning the MC Reagent Lines, Cups, and Stir Bars, the stir bar may rise in the cup due to air
accumulation in the lines. Verify that the stir bar is positioned down into the bottom of the cup.
Motion Error Precautions
If the same motion error occurs repeatedly, refer to the instructions in the correct section of
CHAPTER 5, Troubleshooting, of the UniCel DxC Synchron Clinical Systems Reference Manual or
CHAPTER 12, Troubleshooting Calibration and Result Errors of this manual. If the motion error
continues, contact your Beckman Coulter representative.
Narrow Margin Bar Code Precautions
The sample bar code reader on the DxC System can read narrow-margin bar codes. Because of the
sensitivity needed to read narrow-margin bar codes, the labels must be high quality. They must be
free from smudges, spots or other imperfections. An imperfection could be read as part of the
Sample ID. This could cause an inaccurate read of the bar code.
Obstruction Detection and Correction (ODC) Precautions
Disabling ODC inactivates sample handling safeguards and may compromise sample integrity and
cause erroneous results.
Patient Results
Patient results should be reviewed using delta checks. Please be aware of and question sequential
abnormal results.
Printed Reports Precautions
Based on the system's units/precision setup, a result may be printed as either "high" or "low" even
though the value on the report is within the defined limits. This is due to the rounding of results.
For example, a potassium result of 5.14 mmol/L may be printed as 5.1 mmol/L in the "High" Result
column in a patient report when its reference range is defined as 3.5 to 5.1 mmol/L. The potassium
result of 5.14 mmol/L is greater than the upper reference range limit of 5.10 mmol/L but the value
printed is rounded to 5.1 mmol/L due to the units/precision set up on the system.
A13914AF
Safety Notice
Summary of Precautions
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