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2.
Optional: Label the disc. Write the patient ID on the disc surface, in the space as shown on
page
3-4. Do not write anywhere else on the disc or on the bar code ring.
3.
Carry the prepared disc to the analyzer. Hold the disc by its edges, and make sure keep it
level to avoid spills.
CAUTION:
Do not remove the sample and then try to reintroduce it to the disc.
With your index finger or thumb, push the pipette button
to the stop position and hold it down for sample pickup.
Immerse the tip 2–3 mm below the surface of the sample,
as shown at right.
Slowly release the button to pick up the sample. Pause,
then remove the pipette from the sample tube.
Make sure there are no air bubbles or air gaps in the pipette
tip.
Place the pipette tip into the disc's sample chamber, and tilt
the disc to 45° with the sample port above the fill line, so
that the entire sample flows into the sample chamber. The
tip should touch the sample chamber, as shown at right.
Push the plunger down with a slow, continuous motion.
Take care not to overfill the sample chamber. A 90 µL sam-
ple will fill the sample chamber and form a line between
the two arrows molded on the disc. More than 120 µL of sample will overfill the
chamber.
Keep the pipette plunger pressed down until the pipette tip is removed from the
sample port.
Discard the pipette tip into a biohazard container.
Clean the reagent disc. Use a lint-free tissue to remove any sample spilled on the
outside of the disc, taking care that the tissue does not withdraw any sample
from the sample port. Dispose of the tissue in a biohazard container.
Testing and Results
3-5
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