U.S. health officials warn of false positives with widely used laboratory test for COVID-19, flu

U.S. health officials warn healthcare workers of the risk of false positive results with a widely used laboratory test for COVID-19 and flu.The Food and Drug Administration issued the alarm on Friday for health facilities using Roche’s cobas test to coronavirus and seasonal flu. The agency warned that problems with test processing tubes could lead to false diagnoses in people who aren’t actually infected. Roche’s test system is widely used for screening large batches of patient samples in hospitals and laboratories.The FDA recommends that healthcare professionals test samples multiple times to ensure accuracy. If the test gives mixed results, it could indicate a problem and use should be discontinued, the agency says.

U.S. health officials are warning health care workers about the risk of false positive results with a widely used laboratory test for COVID-19 and flu.

On Friday, the Food and Drug Administration raised the alarm for health facilities using Roche’s cobas test for coronavirus and seasonal flu. The agency warned that problems with test processing tubes could lead to false diagnoses in people who aren’t actually infected.

Roche’s analysis system is widely used for screening large batches of patient samples in hospitals and laboratories.

The FDA recommends that healthcare professionals test samples multiple times to ensure accuracy. If the test gives mixed results, it could indicate a problem and use should be discontinued, the agency says.

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