The problem regarding negative drift on crea was discovered during internal tests.(b)(4) was opened to investigate the root cause of this negative drift.A health risk assessment (hra) has been made for this problem (b)(4) and conclusion is: it is considered remotely possible that the described error by the abl800 flex will cause an injury ot impairment requiring professional medical intervention, but not including injuries requiring intervention to preclude irreversible impairment or damage.In this case no pt related problems was reported, since the problem was identified on the qc measurements.The case was received 2014-09-11, but initially there was no indication that this type of malfunction would lead to potential clinical problems.However, based on further investigations performed by r&d (documented in (b)(4)) it was identified on 2014-10-23, in (b)(4), that there is a potential clinical problem if the customer does not run regular qc.This case is reported since the membranes do not meet their specs related to in use lifetime and this has resulted in the initiation of a recall.The results and conclusion of the root cause investigation will be reported in the recall.
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