Electrophoresis by Immunofixation (IF) - Urine
The Electrophoresis by Immunofixation (IF) – Urine Test is used to detect and identify abnormal proteins in urine for diagnosing kidney and blood disorders.
The purpose of the test is to:
- Detect and identify abnormal proteins in urine
- Identify monoclonal light chains
- Help diagnose conditions like multiple myeloma
- Monitor disease progression and treatment response
ELECTROPHORESIS BY IMMUNOFIXATION (IF) - URINE Test
Urine Immunofixation Electrophoresis (IFE) is a specialized urine test used to detect and identify abnormal monoclonal proteins, particularly immunoglobulin light chains that may be present in urine.
The test is commonly used when a healthcare provider suspects a plasma cell disorder, such as multiple myeloma, or when an abnormal protein has been detected through other investigations. It can help identify the specific type of monoclonal protein and may provide additional information when used alongside serum protein electrophoresis, serum immunofixation, and serum free light chain testing.
Urine immunofixation can also be useful when evaluating certain kidney abnormalities associated with the presence of abnormal proteins in urine.
This Test is Recommended for Individuals:
- Individuals with an abnormal urine or serum protein electrophoresis result
- Patients being evaluated for multiple myeloma or related plasma cell disorders
- People with suspected monoclonal gammopathy
- Individuals with unexplained protein in the urine
- Patients with certain unexplained kidney abnormalities
- People being evaluated for monoclonal light chains (Bence Jones proteins)
- Patients monitoring a previously diagnosed monoclonal protein disorder
FAQs
1. What does urine immunofixation electrophoresis detect?
It detects and identifies monoclonal immunoglobulins or light chains in urine. It can help determine the type of abnormal protein being excreted.
2. Why is urine immunofixation performed for suspected multiple myeloma?
Some plasma cell disorders produce abnormal light chains that can pass into the urine. Urine immunofixation can help detect and characterize these proteins as part of the overall diagnostic evaluation.
3. Does a positive urine immunofixation result confirm multiple myeloma?
No. A positive result indicates that a monoclonal protein may be present, but it does not by itself diagnose multiple myeloma. Further evaluation with blood tests, imaging, clinical assessment, and other investigations may be required.