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You are here : 3-RX.com > Medical Encyclopedia > Injuries and Wounds > Concussion: Symptoms & Signs
      Category : Health Centers > Brain and Nervous System


Alternate Names : Closed Head Injury, Postconcussive Syndrome

Concussion | Symptoms & Signs | Diagnosis & Tests | Prevention & Expectations | Treatment & Monitoring

What are the signs and symptoms of the injury?

The American Academy of Neurology has recently established guidelines for sorting concussions into Grades 1, 2, and 3. Each grade has different symptoms, and treatment recommendations vary according to the grade.

A person with a Grade 1 concussion does not lose consciousness. Symptoms of a Grade 1 concussion go away in less than 15 minutes, and may include:

  • headache
  • dizziness
  • ringing in the ear
  • confusion
  • vision changes, including blurred vision
  • A person with a Grade 2 concussion does not lose consciousness, and has symptoms similar to those of a Grade 1 concussion. However, the symptoms last more than 15 minutes.

    A person with a Grade 3 concussion does lose consciousness for a few seconds to many hours. When the person awakens, he or she may have many of the symptoms of a Grade 1 concussion, as well as:

  • loss of awareness
  • memory loss regarding the events surrounding the injury, also known as amnesia
  • seizures
  • vomiting
  • difficulty walking
  • weakness
  • an altered level of consciousness. The person may be difficult to awaken or may not be acting normally.

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    Concussion: Overview, Causes, & Risk Factors


    Concussion: Diagnosis & Tests

    Author: James Warson, MD
    Reviewer: Eileen McLaughlin, RN, BSN
    Date Reviewed: 02/14/01

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