Fast Five Quiz: Streptococcal Infection Clinical Keys

Michael Stuart Bronze, MD


February 18, 2021

IDSA diagnostic guidelines include the following:

  • RADT and/or culture should be performed to distinguish between GAS and viral pharyngitis, except when overt viral features such as rhinorrhea, cough, oral ulcers, and/or hoarseness are present.

  • In children and adolescents, negative RADT results should be confirmed with a throat culture.

  • Because of the low incidence of GAS pharyngitis in adults and the exceptionally low risk of subsequent acute rheumatic fever, throat culture after a negative RADT result is not necessary.

  • Diagnostic testing of asymptomatic household contacts of patients with acute streptococcal pharyngitis is not routinely recommended.

  • Anti-streptococcal antibody titers are not recommended in the routine diagnosis of acute pharyngitis.

Read more about IDSA guidelines.


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