CONCUSSION GRADING SYSTEMS -
American Academy of Neurology Concussion Severity- March 1997 Practice Parameter: Grade 1: __ Transient Confusion __ No Loss of Consciousness __ Concussion Symptoms < 15 Minutes Grade 2: __ Transient Confusion __ No Loss of Consciousness __ Concussion Symptoms > 15 Minutes Grade 3: __ Any Loss of Consciousness, Brief or Prolonged
Cantu Concussion Severity Grades Grade 1: __No Loss of Consciousness AND Post Traumatic Amnesia < 30 Minutes Grade 2: __ Loss of Consciousness < 5 Minutes OR Post Traumatic Amnesia of 30 Minutes to 24 Hours Grade 3: __Loss of Consciousness > 5 Minutes OR Post Traumatic Amnesia > 24 Hours
Ruff Concussion Grades: Type I : __ altered mental state or transient loss of consciousness (LOC) __ 1-60 seconds of post-traumatic amnesia (PTA) __ one or more neurological symptoms Type II: __ definite LOC with time unknown or < 5 minutes __ 60 seconds to 12 hours of post-traumatic amnesia (PTA) __ one or more neurological symptoms Type III: __ 5 - 30 minutes of LOC __ more than 12 hours of PTA __ one or more neurological symptoms
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