H.6 investigation summary the complaint alleges the affirm instrument (catalog number 250100 and serial number (b)(6) ) had a "false positive".Customer reported that they received all suspected false positive results on a single run.Customer also reported that they noticed the cards did not flip all the way up at the end of the run.Bd service specialists followed-up with the customer who confirms that the issue occurred with one run only and the issue was an isolated event.The customer has performed additional runs since the one occurrence, using the same affirm kit and processor, and testing has been satisfactory with no recurrence of the issue.This complaint is unconfirmed as it alludes to a contamination issue.The root cause cannot be determined with the information provided.No samples were expected to be received as part of this complaint, and therefore no samples were returned, and no returned material investigation could occur.Review of device history record for instrument serial number, a570031 is not required as the issue was not related to the instrument and does not allude a manufacturing error.Service history review was not performed for the instrument as this instrument does not receive any service.Bd quality will continue to closely monitor for trends associated with this complaint.No new risks or hazards, or changes to existing risks/hazards, were identified as a result of this complaint.H3 other text : see h.10.
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