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Loss of Function

Signs of loss of function include:

  • Confusion or altered behavior, such as the inability to fully wake a person from sleep, or unusually aggressive or combative behavior.
  • Dizziness (vertigo) or loss of balance that occurs with nausea or vomiting or that prevents standing or walking.
  • Fainting (syncope) or loss of consciousness.
  • Headache that is severe and in a specific area without another apparent cause.
  • Inability to speak, difficulty speaking, or difficulty understanding speech.
  • Numbness, loss of all feeling, or inability to move (paralysis) in part or all of one side of the body, such as the face, an arm, or a leg.
  • Sudden inability to walk or stand or difficulty walking or standing (ataxia).
  • Vision problems, such as double vision or sudden dimness, blurring, or loss of vision in one or both eyes.
By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Revised January 12, 2011

WebMD Medical Reference from Healthwise

Last Updated: January 12, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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