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Investigation conclusion: retention and returned products were tested with hcg quality control cut-off standard (25miu/ml) and high level hcg clinical urine (212.6iu/ml, 215.2iu/ml, 221.9iu/ml).All devices showed positive results at read time and met quality control specifications.No false negative results were obtained during in-house testing.Manufacturing batch record review did not uncover any abnormalities.The reported complaint could not be replicated with either returned or retention product.Therefore, a root cause could not be determined based on the information provided.This issue will continue to be monitored through incoming complaints.Case details do not indicate if the urine sample was a first morning catch.Per the package insert, very dilute urine may not contain representative levels of hcg.This test provides a presumptive diagnosis for pregnancy.A confirmed pregnancy diagnosis should only be made by a physician after all clinical and laboratory findings have been evaluated.Based on the information available, there is no indication of a product deficiency and no corrective action is required.
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