Jul 13, 2017




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Immunology

Monoclonal Protein Quantitation, Urine, 24 Hour

Monoclonal Protein Quantitation, Urine, 24 Hour (HCULCT) Immunology Lab Test

Name: Monoclonal Protein Quantitation, Urine, 24 Hour

Test Name: Monoclonal Protein Quantitation, Urine, 24 Hour

Health Link Test Code: HCULCT

LIS Test Code: ULCT

CPT Code(s): 84166, 84156

Test Component:

Urine protein electrophoresis and a quantitative urine protein.

Methodology: Gel Electrophoresis

Clinical Information:

Urine protein electrophoresis is used to quantitate monoclonal light chain bands previously identified by urine immunofixation.

Days Performed: Mon-Fri, dayshift - day varies.

In-Lab Turnaround Time: 3 - 5 days.

Stat In-Lab Turnaround Time: Not available stat.

Specimen: 24 hour timed urine

Collection Container: 24 hour urine container

Collection Instructions:

No preservative.

Collection Volume: Entire collection

Stability Ambient:

Not acceptable

Stability Refridgerated:

1 week

Stability Frozen:

3 months for concentrated sample

Sample Analyzed: Urine aliquot

Testing Volume: 10 mL

Pediatric Testing Volume: 10 mL

Specimen Processing:

Refrigerate specimen.

Outreach Specimen Processing:

Send aliquot from a well-mixed 24 hour collection in a sterile container with a coolant pack.

Specimen Transport:

Transport entire collection to Laboratory at close of collection.

Unacceptable Criteria:

Random urine collections.

Urines with preservatives.

Urines with bloody supernatants are acceptable but not desirable.

Urines with no previously identified monoclonal proteins.


A written interpretive report with the scan is issued as a separate report.

Test Limitations:

The total urine protein method may underestimate the tubular and light chain protein fractions causing an underestimate in the semi-quantitative protein values reported by electrophoresis. The percent relationship of light chain proteins to tubular proteins and the ability to detect light chains is not affected.

Monoclonal Protein Urine Electrophoresis requests more frequent than 14 days will automatically be cancelled by the laboratory system.

Additional Information:

A professional fee is associated with this test.