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Centor Score (Modified/McIsaac) for Strep Pharyngitis

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Step 1 of 5 20%

Age *

Step 1 of 5

Exudate or swelling on tonsils *

Step 2 of 5

Tender/swollen anterior cervical lymph nodes *

Step 3 of 5

Temp >38°C (100.4°F) *

Step 4 of 5

Cough *

Step 5 of 5

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    McIsaac WJ, White D, Tannenbaum D, Low DE. A clinical score to reduce unnecessary antibiotic use in patients with sore throat. CMAJ. 1998;158(1):75-83.
    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.
    Fine AM, Nizet V, Mandl KD. Large-scale validation of the Centor and McIsaac scores to predict group A streptococcal pharyngitis. Arch Intern Med. 2012;172(11):847-852.
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