As I went through the diagnosis process, they did a blood draw of about ten tubes of blood.
I asked why and I was told that they take so much blood so they can rule out the mimics.
Tests were run for:
Vit b12 level
Vit E level
Erythrocyte sed rate
C Reactive protein
Thyroid stimulating hormone
anti-borrelia burgdorferi antibodies (Lyme)
anti-HTLV-1 antibodies (tropical spastic paraparesis-HTLV1 associated myelopathy)
very long chain fatty acids(adrenoleukodystrophy,adrenomyeloneuropathy)
Gene studies to rule out Leber's disease, mitochondrial cytopathies.
Sjogrens, Sarcoidosis,granulocytoma, Lupus, fibromyalgia
along with all the usual stuff they look for in blood (liver panel, urinary stuff, etc)
It took a long time to get all the test results back, it cost the insurance company a whole lot of money, and none of them showed anything abnormal.