Test Overview
Test Methodology

Immunofixation electrophoresis

Test Usage

Abnormal bands in the electrophoretic pattern of serum proteins, primarily those in the beta-globulin and gamma-globulin zones, are always suspect of being monoclonal proteins and therefore an indication of gammopathies. Immunofixation is used as a method to identify these bands.

Reference Range *

Interpretative

*Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Due to the resolution and sensitivity limits of immunofixation, it is possible that some monoclonal components may not be detected with this method.

Test Details
Days Set Up
Monday-Friday
Analytic Time

24 hours

Soft Order Code
IFIX
MiChart Code
Immunofixation, Serum
Laboratory
Chemical Pathology
Section
Immunopathology
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. If cryoglobulin is suspected, the specimen must be drawn in a red top tube and maintained at 37 degrees C.

Alternate Specimen
Red Top
Normal Volume
1.5 mL serum
Minimum Volume
1 mL serum
Additional Information

Test includes pathologist interpretation of results billed as a separate additional charge. This test is not available without interpretation. In order to provide accurate interpretation, additional testing components are required and billed as separate charges. These components include a Total Protein Electrophoresis (TPE), Protein, Total (PROT), and Immunoglobulins IgG, IgA and IgM (IGS).

Billing
CPT Code
86334
Fee Code
21991
Pro Fee CPT
86334-26
Pro Fee Code
86334
NY State Approved
No