Central Nervous System IgG Synthesis, IgG, Spinal Fluid:Serum Ratio, IgG Synthesis Rate
10 days
CSF IgG, CSF albumin, and serum IgG: immunologic, serum albumin: spectrophotometry, synthesis rate by calculation
Test Includes:
IgG and albumin quantitation in both serum and spinal fluid samples and the calculation of IgG synthesis rate in the central nervous system
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Calculates IgG synthesis rate in CSF. Aids in diagnosing multiple sclerosis.
Serum AND CSF
1.5 mL serum AND 1 mL CSF
Red-top tube or gel-barrier tube AND sterile (CSF) container
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |