Concussion - Learning Issue: Definition: A condition in...

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Learning Issue: Definition: A condition in which there is a traumatically induced alteration in mental status, with or without an associated loss of consciousness. Etiology: Possible mechanisms include compress, which may injure the brain at the point of contact (coup); tensile forces produced in injury at the point opposite the injury (contrecoup) because axons and nerves are stretched; and rotational forces may result in shearing of axons. Risk Factors or Predisposing Factors: Contact sports, and/or risky behavior (eg. Diving into shallow water…); previous concussions. Pathophysiology: The above mechanisms may result in biochemical changes related to perfusion, energy demand, and utilization at the site of the injury. Signs &Symptoms: Headache and dizziness may be present. Vomiting may be present and signify a significant brain injury associated with elevated intracranial pressure. What to look for in physical exam:
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This note was uploaded on 02/18/2012 for the course PAS 600 - 601 taught by Professor Garrubba during the Fall '10 term at Chatham University.

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Concussion - Learning Issue: Definition: A condition in...

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