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IgG Synthesis Rate/Index CSF
Test Code*
Alias/See Also
CSF IgG Synthesis Rate/Index
Preferred Specimen
2 ml CSF in sterile screw cap container and 1 ml serum
Minimum Volume
CSF: 1 ml Serum: 0.5 ml
Instructions
It is preferred that the collection date and time be the same for both CSF and serum; however, it is acceptable for them to be drawn within 48 hours of each other. CSF must be clear. (CSF collection tube #4 preferred.)
Transport Temperature
Refrigerate
Specimen Stability
Room temperature: 8 hours
Refrigerated: 7 days
Frozen: 90 days
Refrigerated: 7 days
Frozen: 90 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Hemolysis • Xanthochromia/RBCs/hemolysis in CSF
Performing Laboratory
Quest San Juan Capistrano
