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The customer reported discrepant patient results for access high sensitivity troponin i (pn# b52699, lot# 440297) generated on an access 2 immunoassay analyzer (pn# 81600n, (b)(6)).A patient sample initially produced an hstni result of 334.8 pg/ml.The sample was subsequently reflex tested by the system and generated a result of 10.5 pg/ml.A newly collected patient sample tested approximately four hours later produced a negative result.This report is for patient#1.There was no report of an injury or illness to the patient attributable to the output from the device in this event.No change to any patient¿s treatment is reported.
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A1: the full patient identifier is (b)(6).H3&h6:
the investigation included review of customer information, instrument performance data, calibration, quality control, system checks, and precision testing associated with the reported high sensitivity troponin i (hstni) result.No issues with sample quality were reported by the customer.Quality control results were acceptable, calibration passed, system checks met specifications, and precision testing was satisfactory.Hardware verification was completed and found acceptable.
conclusion: there is no evidence to reasonably suggest that a malfunction occurred in conjunction with this event.Instrument hardware verification passed, there is no systemic issue observed in this event.No hardware errors or issues with other assays were reported in conjunction with this event.Retrospective mdr submission under capa-001570.The complaint was reassessed using beckman coulter's revised mdr malfunction reportability methodology and was determined to be reportable.This report is being submitted as part of capa-001570 remediation activities.
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