|
B3 - date of event: was not provided, therefore 1oct2025 was selected.Investigation conclusion: retained devices from the reported lot number were tested with hcg-negative clinical urine samples.The results were read at 3 and 4 minutes and all devices yielded valid negative results.No false positive results were observed during in-house testing.The case details were reviewed along with the complaint history for the reported issue and no indications of a systemic issue were identified.Manufacturing batch record review did not uncover any relevant non-conformances and found that the lot met quality control specifications.Review of the risk management report for this product found that the reported issue is within the risk profile for this device; no new hazard has been identified.A root cause could not be determined from the available information as the reported issue was not replicated during testing of retention product.Complaints are tracked and trended on a monthly basis.Per the package insert: very low levels of hcg (less than 50miu/ml) are present in urine and serum specimen shortly after implantation.However, because a significant number of first trimester pregnancies terminate for natural reasons, a test result that is weakly positive should be confirmed by retesting with a first morning serum or urine specimen collected 48 hours later.A number of conditions other than pregnancy, including trophoblastic disease and certain non-trophoblastic neoplasms including testicular tumors, prostate cancer, breast cancer, and lung cancer, cause elevated levels of hcg.Therefore, the presence of hcg in serum or urine specimen should not be used to diagnose pregnancy unless these conditions have been ruled out.As with any assay employing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (hama) in the specimen.Specimens from patients who have received preparations of monoclonal antibodies for diagnosis or therapy may contain hama.Such specimens may cause false positive or false negative results.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.
|
|
The customer reported receiving false positive hcg results while using sure-vue serum/urine hcg-stat devices with 3 different lots.Although requested, no further information was provided regarding events with lot number 0000972178.No adverse health outcomes were reported.Please note: the customer provided specific patient information and details regarding 1 patient that used lot number 0000972178.The report for that incident has already been reported under 2027969-2025-00206-00.Although requested from the customer, it is unclear if there have been any other false positive instances with lot 0000972178.We are conservatively reporting this incident on this lot.See 2027969-2025-00231 and 2027969-2025-00229 for lots 0000958539 and 0000982191 respectively.Please note: this emdr is a duplicate of 2027969-2025-00230-00 which thus far has been unsuccessfully submitted.
|