Neuronal Protein (or Neuron-Specific Enzyme/Marker) in Cerebrospinal Fluid (CSF)

Why This Test Is Done

Your doctor may order this test if you have symptoms like headaches, vision changes, weakness, or neurological issues that suggest nerve or brain problems. It can also be part of a broader evaluation for conditions like multiple sclerosis, brain tumors, or infections.

What to Expect Before the Test

You’ll have a small needle inserted into your back to collect CSF fluid. This is usually done in a hospital or clinic. You may feel a brief pinch, but the procedure is quick and painless. No special preparation is needed, though you may be asked to empty your bladder beforehand.

What the Test Results Mean

Results may show abnormal levels of proteins or enzymes linked to nerve damage, inflammation, or other neurological conditions. Your doctor will compare these findings to your symptoms and other tests to make a diagnosis.

Common Conditions This Test Helps Diagnose

This test can help identify conditions such as Guillain-Barré syndrome, brain tumors, multiple sclerosis, meningitis, or other disorders affecting the central nervous system.