@bobweller, There is an older discussion that you may want to read through - Kappa Light Chains and PN: https://connect.mayoclinic.org/discussion/kappa-light-chains-and-pn/. @justandie, @oldkarl and @mariannelarsen may have some experience to share with you. There is also another discussion you might find helpful on the test here:

--- CLL and high kappa free light chains: https://connect.mayoclinic.org/discussion/cll-and-high-kappa-free-light-chains/

Have you had the blood labs done?