SPEP: SPEP stands for serum protein electrophoresis. It is commonly used to separate out and identify abnormal protein in the blood called M-protein. Increased level of M-protein can be caused by infection, inflammation or cancer such as multiple myeloma. Myeloma is a cancer of the plasma cells in bone marrow, which can produce excessive monoclonal M-protein detected by SPEP.
Answered 9/3/2015
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