Thanks so much Lulu. That's what I thought. This PA totally dismissed the mbp level and said they only use o bands and IgG. I questioned him several times to make sure I understood what he was saying. I even said, "It doesn't show that you are having demyelination going on if it's high?"
I don't think he really answered that, but he said they don't use it to diagnose MS. I get that....nothing is used to diagnose really - BUT wouldn't you think that if you present with lesions that may be suggestive of a demylenating disease, high MBP on spinal tap, sister with optic neuritis that has been dx CIS and symptoms that indicate ms you might look at all that and say ...HMMMM? I also know that it can be caused by other things....which I think have all been ruled out for me. BUT I am going to do the follow up testing to be smart about it all. We'll see .
By the way, I notice we are the same age. NIce to meet you and thanks for your help!
http://www.nlm.nih.gov/medlineplus/ency/article/003370.htm
"Why the Test is Performed
This test is done to see if myelin, the substance covering your nerves, is breaking down. Myelin breakdown is called demyelination. Multiple sclerosis is the most common cause for this, but other causes may include:
•Bleeding of the central nervous system
•Central nervous system trauma
•Certain brain diseases (encephalopathies)
•Infection of the central nervous system
•StrokeStroke
Normal ResultsNormal Results
In general there should be less than 4 ng/mL of myelin basic protein in the CSF.
Note: ng/mL = nanogram per milliliter
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What Abnormal Results
Myelin basic protein levels between 4 and 8 ng/mL may be a sign of a chronic breakdown of myelin, or recovery from an acute episode of myelin breakdown.
If the myelin basic protein levels are greater than 9 ng/mL, myelin is actively breaking down. "