Protein, Total and Protein Electrophoresis, 24 Hour Urine and Immunofixation

Test Code

LAB5210911

Quest Code

38944

CPT Codes
82570, 84156, 84166, 86335

Includes

Protein, Total, 24-Hour Urine with Creatinine
Protein Electrophoresis, 24-Hour Urine (UPEP)
Immunofixation (IFE), Urine

CPT code 81050 may be added at an additional charge for volume measurement

Preferred Specimen

25 mL 24-hour urine collected in an unpreserved, plastic urine container

Minimum Volume

15 mL

Instructions

Record total volume on test requisition and specimen container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 4 days
Refrigerated: 5 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Acidified urine

Methodology
Electrophoresis • Immunofixation • Spectrophotometry (SP)

Setup Schedule

Night Sets up 6 days a week.

Reference Range

See Laboratory Report

Clinical Significance

Protein electrophoresis evaluates the major protein fractions found in urine. Normally, only small amounts of albumin are seen. Urinary protein electrophoresis is useful in classifying the type of renal damage, if present. Immunofixation is useful in characterizing M-components observed in the protein electrophoresis and in identifying light-chain disease.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.