*o
4FMG)FMQ(VJEF
Screen display reads: “Results invalidated. Slide spotting failure.”
Cause: Sample wicking up the outside of the pipettor tip during slide spotting.
Solution: Rerun the sample with new slides and thoroughly wipe the pipettor tip
with a twisting motion all the way down to the end (see Preparing the
Pipettor for a Sample,QBHF%
Note: &OTVSFUIFEJTQPTBCMFQJQFUUFUJQJT*%&991/BOE
not a generic version.
Cause: Fibrin clot blocked pipettor tip.
Solution: Review the Plasma and Serum Collection and Preparation section on
QBHF$
Cause: Inadequate sample volume for the number of requested tests.
Solution: .BLFTVSFUIFNJOJNVNWPMVNFSFRVJSFNFOUTPGÚ-QFSTMJEFQMVTB
QJQFUUPSQSJNJOHWPMVNFPGÚ-IBWFCFFONFUTFFTFDUJPO$Sample
Preparation and Collection).
Cause: A previously used slide was inserted.
Solution: 6TFPOMZOFXTMJEFT5PBWPJEDPOGVTJPOFNQUZUIFVTFETMJEFESBXFS
after every analysis.
Cause: The pipette tip was not kept in the sample until the pipetting was
completed.
Solution: Follow screen directions and do not rush prompts (review section
D: Basic System Operation).
Cause: Pipettor connection tubes caught beneath analyzer.
Solution: Pipettor tubing should hang freely on right side of analyzer.
Cause: The pipettor collar in the pipettor holder is sticking due to the
accumulation of dried plasma or serum.
Solution: Remove the pipettor from its holder and clean the inside of the pipettor
collar with a cotton swab wetted with alcohol.