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Centor (McIsaac) Calculator

Score modified Centor / McIsaac points for streptococcal pharyngitis risk.

 

Score

About this calculator

Use this calculator for the McIsaac-modified Centor score. Fever, tonsillar exudate, and tender anterior nodes each add 1. Cough present scores 0; absent cough adds 1. Age under 15 adds 1; age 45 or more subtracts 1. This is a strep screen, not a throat culture.

Age: Years, for the McIsaac offset.

Fever: History of fever.

Exudate: Tonsillar exudate.

Nodes: Tender anterior cervical nodes.

Cough present: Yes means cough is present (that item scores 0).

Score: Modified Centor total.