Definition:
A CSF cell count is a test to measure the number of red and white blood cells that are in cerebrospinal fluid (CSF). CSF is a clear fluid that circulates in the space surrounding the spinal cord and brain.
Alternative Names:
How the test is performed:
A sample of CSF is needed. A lumbar puncture (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, by may be recommended in some cases. They include: After the sample is taken, it is sent to a laboratory for evaluation.
How to prepare for the test:
See: Lumbar puncture
How the test will feel:
See: Lumbar puncture
Why the test is performed:
The CSF cell count may help diagnose meningitis and infection of the brain or spinal cord, a tumor, abscess, or area of tissue death (infarct), and it helps identify inflammation. The cell count may also help identify a hemorrhage.
References:
Griggs RC, Jozefowicz RF, Aminoff MJ. Approach to the patient with neurologic disease. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier. 2007: chap 418.
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