The customer reported a discordant elevated progesterone patient results on an atellica im 1600 analyzer using reagent lot# 320.The elevated results were reported to the physician(s).The same samples were repeated on alternate atellica im 1600 analyzers; lower results were obtained.A corrected report was issued to the physician(s) for some of these samples.Progesterone (prge) controls also recovered high and out of insert range using the same reagent pack that produced the discordant results.Inspection of this progesterone (prge) reagent pack showed signs of clumped paramagnetic particles.The customer reported a similar issue with a second pack of prge reagent lot 320.Both packs were received in the same shipment.The shipment was investigated and found to have been delayed due to a weather event.Siemens customer service has replaced the reagent, and the customer is operational using prge lot 320 from a new shipment.Based on available information, the cause of the elevated results is consistent with an isolated shipping issue.The interpretation of results section of the atellica im progesterone instructions for use states: "results of this assay should always be interpreted in conjunction with the patient's medical history, clinical presentation, and other findings.".
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