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 - CSF; Cerebrospinal fluid glucose test
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 on lumbar puncture.
Other methods for collecting CSF are rarely used, but may be recommended in some cases. They include:
After the sample is taken, it is sent to a laboratory for evaluatoin.
See: Lumbar puncture
See: Lumbar puncture
This test may be done to diagnose tumors, infections, inflammation of the central nervous system, delirium, and other neurological and medical conditions.
The glucose level in the CSF should be 50 - 80 mg/100 mL (or greater than 2/3 of the blood sugar level).
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
Abnormal results include increased and decreased glucose levels. Abnormal results may be due to:
See: Lumbar puncture
Review Date: 6/24/2009
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