Brain
Brain

Focal neurological deficits

Definition:
Focal neurological deficits is a loss of movement, sensation, or function in a specific location. The loss is related to problems in the brain or nervous system.

Alternative Names:
Neurological deficits - focal

Considerations:
A focal neurologic deficit involves a change in a nerve function that occurs in a specific location (as opposed to a general loss of consciousness, for example). The type, location, and severity of the neurologic change can indicate the area of the brain or nervous system that is affected.

Focal neurologic deficits affect a specific location (for example, the left face, right face, left arm, right arm, left leg, right leg, even just a small area such as just the tongue) or a specific function (for example, speech may be affected, but not the ability to write).

Focal neurologic changes can include any function. Sensation changes include paresthesia (abnormal sensations), numbness, or decreases in sensation. Movement changes include paralysis, weakness, loss of muscle control, increased muscle tone, and decreased muscle tone.

Other types of focal loss of functions include:
Common Causes:
Home Care:
Home care depends on the type of neurologic loss and the cause of the loss. (See the specific causative disorder)
Call your health care provider if:

If any loss of movement, sensation, or function occurs, you should call your health care provider.

What to expect at your health care provider's office:
The medical history will be obtained and a physical examination performed.

Medical history questions documenting neurological deficits in detail may include:
  • Location
    • Where is the loss of function?
      • Right arm?
      • Right leg?
      • Left arm?
      • Left leg?
      • Another location (be specific)?
  • Other
    • What other symptoms are also present?
The physical examination will include a detailed examination of nervous system function.

Diagnostic tests vary depending on other symptoms that are present and the suspected cause of the loss of nervous function.

After seeing your health care provider:
You may want to add a diagnosis related to focal neurological deficits to your personal medical record.

Review Date: 7/26/2001
Reviewed By: Galit Kleiner-Fisman MD, FRCP(C), Department of Neurology, University of Toronto, Toronto, Ontario, Canada. Review provided by VeriMed Healthcare Network.
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