Ordering Recommendation
Aids in the assessment of CSF IgG/albumin ratio in the absence of a paired serum specimen.
Mnemonic
IGG/ALB
Methodology
Quantitative Immunoturbidimetry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
CSF.
Specimen Preparation
Centrifuge and separate to remove cellular material. Transfer 1 mL CSF to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Grossly bloody or hemolyzed specimens.
Remarks
Stability
Ambient: Unacceptable; Refrigerated: 1 month; Frozen: 6 months
Reference Interval
IgG, CSF: 0.0-6.0 mg/dL
Albumin, CSF: 0-35 mg/dL
CSF IgG/Albumin Ratio: 0.09-0.25
Interpretive Data
Compliance Category
FDA
Note
Hotline History
Hotline History
Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
N/A
CPT Codes
82784; 82042
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050200 | Albumin, CSF | 1746-7 |
0050670 | Immunoglobulin G CSF | 2464-6 |
0080175 | CSF IgG/Albumin Ratio | 2470-3 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- IgG/Albumin Ratio, CSF
- Albumin Ratio
- IgG/Albumin Ratio
- Specific Protein (CSF)
Immunoglobulin G/Albumin Ratio, CSF