Which test is more recommended for multiple myeloma: SPEP or FLC?
Both SPEP (serum protein electrophoresis) and FLC (serum free light chain) tests are important for diagnosing and monitoring multiple myeloma, and they're often used together rather than one being chosen over the other.
SPEP measures abnormal monoclonal Show Full Answer
Which test is more recommended for multiple myeloma: SPEP or FLC?
Both SPEP (serum protein electrophoresis) and FLC (serum free light chain) tests are important for diagnosing and monitoring multiple myeloma, and they're often used together rather than one being chosen over the other.
SPEP measures abnormal monoclonal proteins (M proteins) in your blood and helps identify unusual antibody patterns. It's a key diagnostic tool that looks at five different protein types to detect abnormalities.
FLC testing specifically measures free light chains in your blood. This test is particularly useful because:
- It can detect light chain problems that SPEP might miss
- High FLC scores may indicate a poorer prognosis
- It helps predict disease progression in people with milder plasma cell disorders
Your doctor will likely use both tests together along with other diagnostic tools like bone marrow biopsies and imaging studies to get a complete picture of your myeloma. The combination provides more comprehensive information than either test alone.
Talk with your healthcare team about which tests are most appropriate for your specific situation and stage of diagnosis or monitoring.
February 24
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