Template:RADT algorithm

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Rapid Antigen Detection Test Algorithm for Acute Pharyngitis[1]

Category Testing and Treatment
Clinical features that strongly suggest a viral etiology (eg, cough, rhinorrhea, hoarseness, and oral ulcers)
  • None
<3 years old
  • None
    • Unless they have a special risk factor (e.g. older sibling with GAS infection)
CENTOR = 1
  • None
None of the above with CENTOR ≥2
  • Send rapid antigen detection test
    • Positive = treat
    • Negative
      • Children and adolescents
        • Send back up throat culture (treat later, if positive)
      • Adults
        • None (no need for back up throat culture)

Diagnostic testing or empiric treatment of asymptomatic household contacts of patients with acute streptococcal pharyngitis is not routinely recommended

  1. ↑ Shulman, et al. Clinical Practice Guideline for the Diagnosis and Management of Group A Streptococcal Pharyngitis: 2012 Update by the Infectious Diseases Society of America. Clinical Infectious Diseases 2012;55(10):1279–82
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