What Is Glucose?

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A CSF glucose test measures the amount of sugar (glucose) in the cerebrospinal fluid (CSF). CSF is a clear fluid that flows in the space surrounding the spinal cord and brain.

See also:

  • Glucose test - blood
  • Glucose test - urine

Alternative Names

Glucose test - CSF; Cerebrospinal fluid glucose test

How the test is performed

A sample of CSF is needed. A lumbar puncture, also called a spinal tap, is the most common way to collect this sample. For information on this procedure, see the article...

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