Test ID: ZH443
CPT code: 84156, 86335, 84166
LOINC:
Specimen Type: 24hr plastic urine container without preservative
Frequency: 3 – 5 days
Instruction: 30-mL aliquot Urine without preservative, Refrigerated. Min 11-mL aliquot.
Text: Characterize the species of protein(s) in cases of proteinuria. Techniques can identify albumin, γ-globulin, γ-globulin fragments (light chains, Bence Jones proteins); of value in the study of monoclonal gammopathies, lymphoproliferative diseases, including lymphoma; special application to multiple myeloma, macroglobulinemia of Waldenström, and amyloidosis.
Methodology: Urine immunofixation (IFE) on agarose gel; urine protein electrophoresis on agarose media; visual light-chain typing