Test Code RUIEX Urine Protein Electrophoresis and Immunofixation, Random
Specimen and Container/Tube
Specimen Type: Urine, Random Collection
Preferred Specimen: Sterile Urine Container
Other Acceptable specimens: Sterile Clean Glass container
Specimen Stability
Storage Temperature |
Stability |
Room temperature |
2 hours |
Refrigerated |
7 days |
Frozen |
1 month |
Collection Instructions
Collect specimen per standard laboratory collection procedures.
Specimen Handling and Transport Instructions
UCMC Onsite Instructions:
- Collect specimen per standard collection procedure and send to laboratory immediately.
- No preservatives or additives.
- First morning catch is usually the most concentrated and is preferred.
UCMC Offsite and UC MedLab Outreach Instructions:
- Collect specimen per standard collection procedure and send to laboratory immediately.
- No preservatives or additives.
- First morning catch is usually the most concentrated and is preferred.
- Aliquot urine into plastic tube containing a minimum of 0.2 mL of specimen.
- Urine samples must then be sent refrigerated at 2-8oC.
Rejection Criteria
- Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits.
- Specimens that are collected with preservatives or additives.
Reference Values
Test |
Age |
Sex |
Reference Range |
All test components |
All |
All |
Not applicable |
Critical Values
Not applicable
Turnaround Time
Turnaround times are relative to the time the specimen is received in the test laboratory.
STAT Turnaround Time: Not available as STAT test
Routine Turnaround Time: 48 hours
Testing Schedule: Monday - Friday
Clinical Indications
Urine protein electrophoresis may help identify monoclonal proteins which are excreted into the urine and may elude detection by serum protein electrophoresis, especially the Bence-Jones Proteins (monoclonal free kappa or lambda light chains) which are characteristic of light chain disease.
Test Components
Urine Protein, Random, Urine Albumin Percent, Protein Electrophoresis, Immunofixation Electrophoresis with urine concentration for IgG, IgA, IgM, Kappa and Lambda, Pathologist Interpretation
Methodology
Endpoint Colorimetric Assay Spectrophotometric (Roche Diagnostics)
Sebia Hydragel (HYDRASYS LC and PHORESIS) Electrophoresis System
Sebia Capillarys 3 Tera
CPT Codes
84166, 86335, 84156, 84166
LOINC Codes
TBD
Synonyms/Keyword Search
UPEP
Additional Information
- Results should always be assessed in conjunction with patient's medical history, clinical examination and other findings.
Last Review Date
4/18/2025
Volume
Preferred Volume: 0.5 mL
Minimum Volume: 0.2 mL