4-2 Test Procedure and Results
5. Press ANALYZE on the touchscreen to open the
analyzer’s rotor drawer. Place the rotor in the
drawer, then press CLOSE on the touchscreen.
There is no need to orient the rotor in a particular
direction. Analysis begins automatically when
the drawer closes.
6. Input patient information such as patient ID,
operator ID, etc., as directed by the analyzer’s
display. The analyzer then processes the sample
with no further input. Sample processing is complete when “Analysis Complete” appears
on the display.
7. The results are stored in the analyzer and printed automatically. (Results can also be
recalled and printed later as needed — see Section 6 for instructions).
8. Open the rotor drawer and remove the rotor. The rotor may be placed back into the foil
pouch before disposal. Press CLOSE to close the drawer if another reagent rotor will not
be run immediately.
THE VETSCAN VS2 CHEMISTRY ANALYZER IS NOW READY TO RUN THE SAMPLE.
4.2 Collecting Samples
Note: Always follow these guidelines when collecting or testing samples:
• Analyze whole blood samples within 60 minutes of collection.
• Use the rotor within 20 minutes of opening the pouch.
• Run the rotor within 10 minutes of applying sample to the rotor.
Approximately 100 PL of sample is required. Use no-additive evacuated specimen collection
tubes or serum separator tubes for serum samples. Use only lithium heparin evacuated specimen
collection tubes for whole blood or plasma samples. When collecting the sample in lithium hep-
arin collection tubes, fill the tube at least halfway so the anticoagulant does not become too
concentrated in the sample.
Run whole blood samples within 60 minutes of collection. If this is not possible, separate the sam-
ple and transfer it into a clean test tube. Run the separated plasma or serum sample within 5 hours
of centrifugation. If this is not possible, refrigerate the sample in a stoppered test tube at 2–8 ºC
(36–46 ºF) for no longer than 48 hours. A heparinized plasma or serum sample can be stored at
-10 ºC (14 ºF) for up to 5 weeks in a freezer that does not have a self-defrost cycle.
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