All calculatorsInfectious diseases

Centor Score

Estimates likelihood of group A streptococcal pharyngitis from 4 clinical criteria, to guide testing/empiric treatment decisions.

For healthcare professionals.These calculate a score or a measurement from values you enter. They do not diagnose, and they are no substitute for clinical judgement. If you are a patient, discuss any result with your own doctor rather than acting on it.

Tonsillar exudate

Tender anterior cervical lymphadenopathy

Fever by history

Absence of cough

Result

0 / 4

Low risk

Low risk of GAS pharyngitis (~32-56% at score 3-4). Score 0-1: strep testing/antibiotics generally not needed. Score 2-3: consider rapid strep test. Score 4: consider testing or empiric treatment per local guidance.

Source

Centor RM, Witherspoon JM, Dalton HP, Brody CE, Link K. The diagnosis of strep throat in adults in the emergency room. Med Decis Making. 1981;1(3):239-246.

Shown for reference and checked against the source above. Confirm against current guidance before acting on it, and use your own clinical judgement.

These live inside Kyorit MD too

Specialists get the full set, including dosing and infusion calculators, alongside virtual chambers and board consultations.

Open Kyorit MD