ARUP's Laboratory Test Directory
| 0050676: Immunoglobulin G, CSF Index |
| Test Mnemonic: IGG SYN | |
|
Methodology: Nephelometry
Performed: Sun-Sat Reported: Within 24 hours |
| Specimen Required: | |
|
Collect: CSF and one 4 mL SST.
Transport: 1 mL CSF and 1 mL serum at 2-8°C. (Min: 0.5 mL CSF and 0.5 mL serum) Submit specimens in ARUP Standard Transport Tubes. Pediatric Collection/Transport: 0.3 mL CSF and 0.3 mL serum at 2-8°C. Remarks: Separate serum from cells ASAP. Centrifuge and separate to remove cellular material. Unacceptable Conditions: Grossly bloody or hemolyzed specimens. Stability: Ambient: 8 hours; Refrigerated: 8 days; Frozen: 1 year (if frozen within 24 hours) |
|
| Reference Interval: |
|
IgG, Serum: 768-1632 mg/dL IgG, CSF: 0.0-6.0 mg/dL Albumin, Serum: 3500-5200 mg/dL Albumin, CSF: 0-35 mg/dL Albumin Index: 0.0-9.0 CSF IgG Synthesis Rate: 0.0-8.0 mg/d IgG Albumin Ratio: 0.09-0.25 IgG Index: 0.28-0.66 |
| CPT Code(s): | |
| 82784 x2 Immunoglobulins; 82040 Albumin, serum; 82042 Albumin, CSF |