McIsaac Score: Modified Centor Criteria. Incorporates age to improve diagnostic specificity for Group A Strep (GAS).
Verified
Last Review: 2026-07-17
| ≤ 1 points | No further testing or antibiotics needed (~5-10% risk). |
| 2–3 points | Perform RADT/Culture; treat only if positive (~10-30% risk). |
| ≥ 4 points | Empiric antibiotics or RADT/Culture (~51% risk). |
McIsaac WJ et al. • CMAJ.. 1998;158(1):75-83. Showed significant reduction in antibiotic prescribing when using the age-adjusted score.
Last Comprehensive Review: 2026-07-17
Clinical Context
We think this has broad domain relevance to McIsaac (Modified Centor) Score for GAS Pharyngitis.
Clinical Context
We think this has broad domain relevance to McIsaac (Modified Centor) Score for GAS Pharyngitis.
Clinical Context
We think this has broad domain relevance to McIsaac (Modified Centor) Score for GAS Pharyngitis.
