At the time of the event, there was no indication of a reportable malfunction based on information provided and assessed by alere (b)(4).Alere (b)(4) updated reporting decisions and conducted a retrospective review of complaints against the updated reporting decisions.This mdr is a retrospective filing that was identified during this retrospective review activity associated with an observation from an fda inspection conducted in january 2019 at alere (b)(4) (reference eir (b)(4)).The awareness date is based on updated reporting decisions and completion of the retrospective review activity.There is no new or increased trend based on this retrospective review activity.Investigation results: the customer's observation was not replicated in-house with retention and return products.Retention and return devices were tested with in-house clinical hcg negative urine samples.All hcg results were negative at read time and met qc specifications.No false positive results were obtained during in-house testing.Manufacturing batch record review did not uncover any abnormalities.From the literature, a number of conditions other than pregnancy can cause elevated levels of hcg.E.G.Menopause, trophoblastic disease and hcg injections.Hcg may also remain elevated for several weeks after delivery, abortion and natural termination.Based on the information provided by the customer some of the patients were postpartum.In this case, positive results may be observed due to low hcg levels unrelated to pregnancy.Because the specimen associated with the complaint was not returned for investigation, a root cause could not be determined based on the information provided.
|
It was reported that a site location has higher than expected rates of false positives.Although requested, no other information has been received.Troubleshooting occurred with proper storage, handling of the cassettes, proper testing technique and emphasized the importance of the read time for the test.Tss advised the read time for this test is 3-4 minutes and results should not be interpreted after that read time.Tss advised a first morning urine specimen is preferred since it generally contains the highest concentration of hcg; however, urine specimens collected at any time of the day may be used.
|