One 7.5 mL serum separator tube (SST) or one 5 mL red top tube AND 5 mL cerebrospinal fluid (CSF). Specimens must be drawn within 7 days of each other. Both serum and CSF are required for this test and must be submitted together.
Handling:
Allow to clot, centrifuge and separate serum from cells immediately. Refrigerate.
Standard Volume:
1 mL serum AND 2 mL CSF.
Minimum Volume:
0.8 mL serum AND 1 mL CSF.
Transport:
Refrigerated.
Comments:
Only bands that are present in spinal fluid and not in serum are reported. Includes IgG, CSF, and IgA serum.
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