ARUP's Laboratory Test Directory

Immunoglobulin G/Albumin Ratio, CSF : 0050680

Mnemonic: IGG/ALB

Methodology: Nephelometry
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: CSF.

Specimen Preparation: Centrifuge and separate to remove cellular material. Transfer 1 mL CSF to an ARUP Standard Transport Tube. (Min: 0.4 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Grossly bloody or hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 8 hours; Refrigerated: 8 days; Frozen: 1 year
Reference Interval:
IgG, CSF: 0.0-6.0 mg/dL
Albumin, CSF: 0-35 mg/dL
CSF IgG/Albumin Ratio: 0.09-0.25
CPT Code(s): 82784; 82042
Cross References: IgG/Albumin Ratio (Immunoglobulin G/Albumin Ratio, CSF)