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HelpTest Code SFINC Cerebrospinal Fluid (CSF) IgG Index, Spinal Fluid
Specimen Required
Only orderable as part of a profile. For more information see SFIG / Cerebrospinal Fluid IgG Index Profile, Serum and Spinal Fluid.
Specimen Type: Spinal fluid
Container/Tube: Sterile vial
Preferred: Collection vial number 2
Specimen Volume: 1 mL
Collection Instructions: Label specimen as SFINC.
Specimen Type
CSFSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| CSF | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 14 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Only orderable as part of a profile. For more information see SFIG / Cerebrospinal Fluid IgG Index Profile, Serum and Spinal Fluid.
CSF index: 0.00-0.70
CSF IgG: 0.0-8.1 mg/dL
CSF albumin: 0.0-27.0 mg/dL
CSF IgG/albumin: 0.00-0.21
Reference values have not been established for patients younger than 18 years.
CSF IgG synthesis rate: 0-12 mg/24 h
Day(s) Performed
Monday through Friday
Report Available
Same day/1 to 2 daysSpecimen Retention Time
2 weeksPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82042
82784