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 quotes Thomas Russo in an article about using COVID tests to detect current variants. If you’re sick and your first home test is negative, you have a few options besides waiting and repeating the test, explained Russo. You can go to urgent care and request a PCR test. Or, if you are older or in a high-risk group due to a pre-existing condition, just call your doctor, who might be willing to prescribe Pfizer’s Paxlovid pills without a confirmatory test, he said.