Serum Free Light Chains Control

Serum free light chain assays are capable of detecting free light chains at their normal (non-elevated) levels in the blood. Importantly, these assays can detect mildly increased levels of free light chains even when these levels are undetectable by serum protein electrophoresis (SPEP) and immunofixation electrophoresis (IFE). This means that multiple myeloma could be detected earlier than might be possible with either SPEP or IFE. This is particularly useful in instances when only small amounts of light chains are produced by the myeloma.