Lab

Throat Culture

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Throat Culture

  • Indication
  1. Suspected Group A Streptococcal Pharyngitis
    1. Not recommended as primary test due to 24 hour delay
  2. Confirmatory testing
    1. Negative Streptococcal Rapid Antigen Test
  • Technique
  1. Requires 24 hour minimum for adequate growth
  • Accuracy
  1. Highly dependent on technique
  2. Single swab with single culture in adults
    1. Test Sensitivity: 90%
    2. Test Specificity: 99%