Customer reports the provue gave false negative crossmatch results.Manual gel testing was done using the same samples and the customer observed a 1+ reaction.No erroneous results were reported due to this issue.Initial crossmatch testing with patient sample (b)(6): unit id# (b)(6) 1+; unit id# (b)(6) flagged with a; unit id# (b)(6) result was negative/small cell button.Manual gel repeat testing of the same revealed all reactions were 1+.Prior to this issue, the provue had service order created due to probe dispense (b)(4) and gelcam unexpected volume, (b)(4).
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