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Test Code OLIG / OLIG-M Oligoclonal Banding, Serum and Spinal Fluid

Additional Codes

Software Test Code
Label Text OLIG
EPIC LAB20190
Mayo Laboratories                                OLIG                                                    

Reporting Name

Oligoclonal Banding

Useful For

Diagnosis of multiple sclerosis; especially useful in patients with equivocal clinical presentation and radiological findings

Profile Information

Test ID Reporting Name Available Separately Always Performed
OLIGS Serum Bands No Yes
OLIGC CSF Bands No Yes

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

CSF
Serum


Specimen Required


Both serum and spinal fluid are required. Spinal fluid must be obtained within 7 days of serum collection.

 

Specimen Type: Serum

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Centrifuge and aliquot serum into a plastic vial within 2 hours of collection.

2. Label specimen as serum.

 

Specimen Type: Spinal fluid

Container/Tube: Sterile vial

Specimen Volume: 0.5 mL

Collection Instructions: Label specimen as spinal fluid.


Specimen Minimum Volume

Serum, Spinal Fluid: 0.4 mL

Specimen Stability Information

Specimen Type Temperature Time
CSF Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days
Serum Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reference Values

CSF Oligoclonal Bands Interpretation: <2 bands

Day(s) Performed

Monday through Friday

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

83916 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
OLIG Oligoclonal Banding 100757-4

 

Result ID Test Result Name Result LOINC Value
8017 CSF Bands 49852-7
2783 Serum Bands 100755-8
23611 CSF Olig Bands Interpretation 100756-6

Clinical Information

The diagnosis of multiple sclerosis (MS) is dependent on clinical, radiological, and laboratory findings. The detection of increased intrathecal immunoglobulin synthesis is the basis for current diagnostic laboratory tests for MS. These tests include the measurement of kappa free light chains in cerebrospinal fluid (CSF) and CSF oligoclonal band (OCB) detection. Abnormal CSF OCB patterns have been reported in 70% to 80% of MS patients.

 

Increased intrathecal Ig synthesis may occur in other inflammatory CSF diseases and, therefore this assay is not specific for MS.

Cautions

This test is not specific for multiple sclerosis.

Method Description

The oligoclonal band (OCB) assay requires paired cerebrospinal fluid (CSF) and serum samples. Unconcentrated CSF and diluted serum are electrophoresed by isoelectric focusing. The separated immunoglobulins (Ig) are visualized by an IgG immunoblot, and OCBs that are present in the CSF and not in the serum are reported. The assay uses reagents from Helena Laboratories.(Keir G, Luxton RW, Thompson EJ: Isoelectric focusing of cerebrospinal fluid immunoglobulins G: an annotated update. Ann Clin Biochem 1990;27:436-443; Hortin GL: Amino Acids, Peptides, and Proteins. In: Burtis CA, Bruns DE, eds. Tietz Fundamentals of Clinical Chemistry and Molecular Diagnostics. 7th ed. Elsevier; 2015:chap 18)

Report Available

2 to 4 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Method Name

Isoelectric Focusing (IEF) with IgG Immunoblot Detection

Secondary ID

8017