FLCP - Overview: Immunoglobulin Free Light Chains, Serum

Test Catalog

Test Name

Test ID: FLCP    
Immunoglobulin Free Light Chains, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

Monitoring patients with monoclonal light chain diseases but no M-spike on protein electrophoresis

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
KFLCKappa Free Light Chain, SNoYes
LFLCLambda Free Light Chain, SNoYes
KLRKappa/Lambda FLC RatioNoYes

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

The following algorithms are available in Special Instructions:

-Laboratory Approach to the Diagnosis of Amyloidosis

-Laboratory Screening Tests for Suspected Multiple Myeloma

Special Instructions and Forms Library of PDFs including pertinent information and consent forms, specimen collection and preparation information, test algorithms, and other information pertinent to test

Method Name A short description of the method used to perform the test


NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Immunoglobulin Free Light Chains, S

Aliases Lists additional common names for a test, as an aid in searching

Free Light Chains
Kappa FLC
Kappa-Free Light Chain
Lambda FLC
Lambda-Free Light Chain
Light Chains
Serum Free Light Chains