Canadian CT Head Rule Calculator Sponsored Advertising placement Canadian CT Head Rule Clinical Decision Tool Applies the Canadian CT Head Rule high- and medium-risk criteria in eligible adults with minor head injury. Canadian CT Head Rule Eligibility Confirmed i Eligible × Do not apply outside the validated population. Follow local policy for anticoagulation, bleeding disorders, seizures, pregnancy, penetrating injury or age below 16 years. Yes — adult minor head injury with GCS 13–15 after witnessed loss of consciousness, amnesia or disorientation; exclusions considered No or uncertain Do not apply outside the validated population. Follow local policy for anticoagulation, bleeding disorders, seizures, pregnancy, penetrating injury or age below 16 years. GCS Below 15 at Two Hours After Injury No 0 Yes +1 Suspected Open or Depressed Skull Fracture No 0 Yes +1 Any Sign of Basal Skull Fracture No 0 Yes +1 Two or More Episodes of Vomiting No 0 Yes +1 Age 65 Years or Older No 0 Yes +1 Retrograde Amnesia for 30 Minutes or More No 0 Yes +1 Dangerous Mechanism of Injury No 0 Yes +1 Calculate Canadian CT Head Rule Clear Calculator ☆ Log in to save Save this calculator to your MDPDA account. + Add to Toolkit Log in to save incomplete calculator progress and return later. Log in to save progress Clinical Decision Support Only MediCalc calculators are intended to support qualified healthcare professionals and must not replace professional clinical judgement. Do not enter patient-identifiable information into Saved Progress. Read our Clinical Disclaimer Sponsored Advertising placement
