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Test Code UIFE24 Immunofixation, 24 HR, U LAB5498


Agarose Gel Electrophoresis

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred:  24-hour timed urine collection. No preservative.

Specimen Volume: 5ml urine from a 24 hour urine collection.

Stability: Refrigerate specimen during collection, and send specimen refrigerated.

               Specimens may be stored at 2-8°C for up to 7 days and frozen for up to 1 month.

Collection Instructions: Must obtain 24 hour urine jug from lab to start collection.

Note: Starting and ending times of collection are required for processing.

Reference Values

No abnormal proteins present

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

81050-Timed urine measurement


Useful For

Immunofixation electrophoresis is a useful clinical tool for rapid identification of various protein abnormalities in serum and urine including monoclonal gammopathies.