Investigation conclusion: the customer's complaint was not replicated during in-house testing with retains of device lot w63286rb.No issues with d-dimer recovery were observed, lot performed properly.Manufacturing batch records for the lot were reviewed, lot met release specifications.Based on the information available, there is no indication of a product deficiency and no corrective action is required.Although this catalog number (98100eu) is not approved in the united states, this event is being reported as the device is same/similar to catalog number 98100, 510(k) number k042890.
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The customer reported discordant d-dimer results for one patient in the hospital.On (b)(6) 2018 the patient yielded a triage d-dimer of 1660 ng/ml, customer using a cut-off of 600 ng/ml.The patient sample was sent to another lab and tested for d-dimer using nyocard.D-dimer was 0.3 mg/l, customer using a cut-off of 0.3 mg/l.On (b)(6) 2018 the customer retested the patient sample on triage; d-dimer was 1720 ng/ml.Patient was diagnosed with vasovagal syncope.Patient was not diagnosed with deep vein thrombosis or pulmonary embolism.
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