Test ID: ZH442
CPT code: 84156, 86335, 84166
LOINC:
Specimen Type: Urine (random)
Frequency: 3 – 5 days
Instruction: 30-mL aliquot of random urine without preservative, Refrigerated, First morning urine. Min 11-mL aliquot of random urine.
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