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PROTEIN ELECTORPHORESIS, URINE
Number 365
CPT Code 84166
Alias PROTEIN ELECTROPHORESIS, URINE
Specimen Container Plastic Screw Cap Vial
Specimen Type Random Urine
Turn Around Time
Days Performed
Reference Range Normal pattern
Alternate Specimen
Volume 20 mL Urine
Stability Ambient N/A
Stability Refrigerated Preferred
Stability Frozen N/A
Patient Preparation
Methodology
Electrophoresis on agarose media
Limitations
May not detect pathologic light chains due to insufficient sensitivity. Should be followed with immunoelectrophoretic or immunofixation study performed on concentrated urine. Optimal specimen when looking for a free monoclonal light chain (Bence Jones protein) is a 24-hour collection.
Rejection Criteria
Added preservative
Additional Instructions
Performing Laboratory Reference Laboratory
TagsELECTROPHORESIS, FRACTIONATION, URINE, PROTEIN, UPEP, BENCE JONES