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Immunofixation (IFE), Urine
Test Code213
Alias/See Also
LAB00341
IFIX UR
IMMUNOELECCTROPHORESIS, URINE
IFIX UR
IMMUNOELECCTROPHORESIS, URINE
CPT Codes
86335
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
25 mL aliquot of random or 24-hour urine, no preservative
Minimum Volume
15 mL
Other Acceptable Specimens
Yellow-top, blue fill line urinalysis transport tube
Transport Container
Plastic urine container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 5 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Immunofixation
Setup Schedule
Sun-fri
Report Available
3-7 days
Clinical Significance
Immunofixation of urine is useful in evaluation of monoclonal free light chains and other monoclonal gammopathies seen in light chain disease, multiple myeloma, Waldenstrom's macroglobulinemia, amyloidosis, and other lymphoproliferative disorders. Increased polyclonal free light chains in urine may be seen in glomerular leak syndromes and in infection or inflammation.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |