Centor Score for Diagnosis of Strep Throat

With the model, patients can be stratified into varying probability groups for Strep throat and this stratification gives the physician valuable information for management options.

History of Fever (>38.3 °C or 100.9 °F)
+1
Lack of cough
+1
Tonsillar exudates
+1
Swollen tender anterior cervical nodes
+1
Probability Of Having Heparin-induced Thrombocytopenia
0%
Based on a score of 0 out of 8
Recommendations

Risk scores of 0-1 make strep pharyngitis an unlikely diagnosis. The most common cause of sore throat is viral pharyngitis and testing for strep pharyngitis may not be necessary.

The following are supportive therapy suggestions.

  • Acetaminophen ER 650 mg Tab
  • Benzocaine-Menthol 6 mg-10 mg Lozenges
  • Ibuprofen 400 MG Tab

Risk scores of 2-3 can be suggestive of strep pharyngitis. Rapid strep testing can help differentiate between strep pharyngitis and other causes of sore throat.

If the Rapid Strep test is positive, the following are antibiotic and supportive therapy suggestions.

  • Penicillin V Potassium 250 mg Tab
  • Azithromycin 250 mg Tab
  • Amoxicillin 875 mg Tab
  • Cephalexin 500 mg Tab

If the Rapid Strep test is negative, the following are supportive therapy suggestions.

  • Acetaminophen ER 650 mg Tab
  • Benzocaine-Menthol 6 mg-10 mg Lozenges
  • Ibuprofen 400 MG Tab

Risk scores of 4 are very suggestive of strep pharyngitis or another bacterial cause of pharyngitis. Consider treating for strep pharyngitis without further testing.

The following are antibiotic suggestions.

  • Penicillin V Potassium 250 mg Tab
  • Azithromycin 250 mg Tab
  • Amoxicillin 875 mg Tab
  • Cephalexin 500 mg Tab