A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Immunofixation, Urine
Test Code213
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
25 mL random urine or 24-hour urine collected in a plastic, leak-proof container, no preservative
Minimum Volume
15 mL
Other Acceptable Specimens
Random urine, or 24-hour urine collected in a UA urinalysis transport tube (yellow-top, blue fill line)
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
Set up: Mon-Sat; Report available: 2-5 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
14225 Newbrook Drive
Chantilly, VA 20153