This test is aslo known as urine immunofixation electrophoresis/immunoassay for free light chains/BJP/urine electrophoresis/urinary light chains/myeloma studies.
The Bence-Jones protein urine test is used most often to diagnose and check on multiple myeloma, a type of cancer.
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Your healthcare provider may recommend this test if you have some of these symptoms:
- Bone pain or breaks, especially in the back, hips, or skull.
- Brimming with infections.
- High blood calcium.
- Low levels of red or white blood cells or platelets.
- Nervous system issues, like pain, numbness, or weakness.
- Stroke-like symptoms, such as confusion and dizziness.
- Fatigue and swelling of the legs.
This test may be done with a 24-hour urine sample. For this sample, you must collect all of your urine for 24 hours. Empty your bladder completely first thing in the morning without collecting it. Note the time. Then collect your urine every time you go to the bathroom over the next 24 hours. You will collect it in a container that your healthcare provider or the lab gives you.
Or you may have urine protein electrophoresis. This test checks the levels of proteins in the urine, including Bence-Jones proteins. This test does not need a 24-hour sample. It is done with a small sample of urine in a collection container.
None
Three to five days
Urine.
Sample report in a format
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