- How long does it take for covid 19 pcr test results Looking for: COVID diagnostic testing - Mayo Clinic - Need a COVID-19 Test? Click here to ENTER In other cases, you might not develop symptoms at all. You should still get tested 5 days after an exposure, even if you have no symptoms. An at-home test is a type of rapid antigen testalso called a rapid diagnostic test. It checks nasal swab samples for proteins in the coronavirus. Having too much mucus in your nose can dilute the sample and increase the risk of a false negative result. It also provides results in about 15 minutes. The accuracy also differs depending on whether you test positive or negative. An how long does it take for covid 19 pcr test results lohg is most увидеть больше when you have an active infection. So, positive results from a home test are highly accurate. If you test negative again, you tesults end your quarantine. COVID symptoms can vary widely from one person to the next. Some people may have
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