Investigation conclusion: customers complaint was not replicated with in-house testing of retain lot w63722b.No issues with recovery were observed and product performed properly.Manufacturing batch records for the lot were reviewed, the lot met release specifications.Customer was performing a patient correlation between two sites.Customer provided patient draw time and testing times when alleged discrepant results were received; more than 4 hours passed between patient draw time and last triage result.Per the product package insert, if using whole blood, the patient specimen should be tested within 4 hours of collection.Customer's results at their site were produced outside of this time-frame.Based on the information available, there is no indication of a product deficiency and no corrective action is required.
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