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For patients with an average risk of having streptococcal pharyngitis, a number of testing strategies can rule out infection, including a single negative rapid strep antigen test, which has a negative predictive value of more than 95%. In patients at higher risk of having strep, based on clinical criteria, all the test strategies being studied are more likely to be falsely negative.
While it is reasonable to rely on a variety of strategies to exclude strep throat in average-risk patients, high-risk patients with a negative rapid antigen test should have an additional rapid strep test or a throat culture to exclude strep with a certainty of greater than 95%.
For patients with an average risk of having streptococcal pharyngitis, a number of testing strategies can rule out infection, including a single negative rapid strep antigen test, which has a negative predictive value of more than 95%. In patients at higher risk of having strep, based on clinical criteria, all the test strategies being studied are more likely to be falsely negative.
While it is reasonable to rely on a variety of strategies to exclude strep throat in average-risk patients, high-risk patients with a negative rapid antigen test should have an additional rapid strep test or a throat culture to exclude strep with a certainty of greater than 95%.
For patients with an average risk of having streptococcal pharyngitis, a number of testing strategies can rule out infection, including a single negative rapid strep antigen test, which has a negative predictive value of more than 95%. In patients at higher risk of having strep, based on clinical criteria, all the test strategies being studied are more likely to be falsely negative.
While it is reasonable to rely on a variety of strategies to exclude strep throat in average-risk patients, high-risk patients with a negative rapid antigen test should have an additional rapid strep test or a throat culture to exclude strep with a certainty of greater than 95%.