Idexx VetTest, Operator'S Manual

Page: 51 / 132

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Quality Control
If several chemistries are out of range, follow this chart to complete the
QC procedure:
Several tests out of range
(high or low)
Reconstitute new control material.
Carefully measure 3 mL (cc) in order to avoid an
overly diluted or concentrated mixture.
Repeat the QC protocol using the new control.
If QC is within range,
proceed with analysis.
If QC fails, call
IDEXX Technical Support.
Documenting Quality Control Results
IDEXX provides you with preprinted pages to document your QC results. You should
take time to record all QC results in these “QC Logs.”
Note: At the top of each QC log page is a control lot number that must match the
lot number on the VetTrol Control vial or UPRO Control vial that you use for a QC
procedure. Should you encounter any problems during a QC procedure, these records
will help you and IDEXX Technical Support identify trends and troubleshoot problems.
Performing the Ca Offset Procedure
The Ca Offset Procedure should be performed only when recommended by IDEXX
Technical Support.
Important: This procedure must be performed using slides from an unexpired VetTest
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To perform a Ca Offset procedure:
Reconstitute a fresh sample of VetTrol Control fluid and perform a QC procedure
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All slides must be from the same lot
number . The VetTest will automatically recalculate the new offset and store the
information in its memory.
The four calcium values will be printed at the end of the analysis on the internal
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printer. The values should all be in range for that QC lot.
If one or all values are out of range, contact IDEXX Technical Support to determine t
if further steps need to be taken.
Note: If you perform this procedure and the VetTest analyzer displays the results
but does not display the new calcium offset value, call IDEXX Technical Support
(not all combinations of unexpired slides and control fluids are supported).