Streptococcal Rapid Antigen Test

Aka: Streptococcal Rapid Antigen Test, Rapid Strep Test

II. Indication

  1. Suspected Group A Streptococcal Pharyngitis

III. Methods

  1. Extraction
    1. Enzyme extraction (more sensitive)
    2. Acid extraction (faster, usual testing method)
  2. Identification
    1. Enzyme immunoassay (usual identification method)
    2. Latex agglutination (requires skill to interpret)

IV. Efficacy

  1. Test Sensitivity: 80-86%
  2. Test Specificity: 96-98%

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