Laboratory Test Information Guide

Details for Protein Electrophoresis, Urine

Test Name: Protein Electrophoresis, Urine
Alternate Name(s): PELUR
Monoclonal Protein Screen
Light Chain Screen
Bence Jones Protein Screen
Urine Protein Electrophoresis
Laboratory: Clinical Immunology
Specimen Type: 24-hour urine or random urine
A 24-hour urine collection is the preferred specimen for analysis of Bence Jones protein (free light chains). If a 24-hour urine is not available, the first voided morning specimen is recommended.
Collection Information: Collection of 24-Hour Urine Sample

For 24-hour urine:
Collect urine over a 24-hour period in a sterile container with no preservatives

Minimum volume of urine required is 15 mL.

Please complete the laboratory label attached to the collection bottle to include patient’s name, collection start time and date and collection end time and date.
Test Schedule: Monday - Friday
Turnaround time from when specimen
is received in testing laboratory:
5 days
Reference Range: Interpretative analysis
Effective Date: 2009-02-27
Revised Date: 2019-03-14
Critical Value:  
Interpretive Comments: Abnormal bands are identified by immunofixation electrophoresis.
Special Processing:  
Comments: Based on consultation with the main users of the test, it has been decided to limit the collection frequency to ≥ 3 weeks for repeat testing. If urine protein electrophoresis is ordered and it has been <20 days since the collection date of the last sample run, the test will be cancelled.
Method of Analysis: Sebia gel electrophoresis
Critical Information Required:  
Storage & Shipment: For short transit times (< 2 hours), ship at ambient temperature.
For transit times > 2 hours, ship with ice packs.
Store at 2 – 8 °C.
System Codes: 
Referred To:  

Questions? Comments? Contact Laura Gopaul