What does it mean when the immunoglobulin free light chains lab results are elevated?

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Question from Sharon:

What does it mean when the immunoglobulin free light chains blood results show an increase in all three areas. IgFLC Kappa/Lambda, Ig Free Light Chain Kappa and Ig Free Light Chain Lambda? Other numbers in the Protein Electrophoreses serum seem pretty consistent.

Answer from Dr. Leclair:

My first thought is that you are reacting to recent immune insult (virus, Lyme disease, some bacterial infections, immunizations, etc.) so that your immune system is busy making IgG. If the total IgG is within range, then it could be transient.

Please remember the opinions expressed on Patient Power are not necessarily the views of our sponsors, contributors, partners or Patient Power. Our discussions are not a substitute for seeking medical advice or care from your own doctor. That’s how you’ll get care that’s most appropriate for you. 

Have a question for the experts? Send them to questions@patientpower.info.

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Page last updated on April 25, 2019