What does a high kappa light chain free serum mean?
A free light chains test measures the amount of lambda and kappa free light chains in the blood. If the amount of free light chains is higher or lower than normal, it can mean you have a disorder of the plasma cells.
What is the serum free light chain assay test?
Serum free light chain (SFLC) testing is ordered to help detect, diagnose, and monitor plasma cell disorders (dyscrasias), including multiple myeloma, primary amyloidosis, and related diseases or to monitor the effectiveness of treatment. Light chains are proteins produced by plasma cells.
Does high kappa light chain mean myeloma?
While increased numbers of either arm, called kappa or lambda light chains, is likely bad news that may ultimately mean multiple myeloma, to more accurately diagnose and monitor the condition, we need to evaluate the concentrations of each light chain differently, investigators report.
What is considered a high free kappa light chain?
Normal test results for free light chains are: 3.3 to 19.4 mg/L kappa free light chains. 5.71 to 26.3 mg/L lambda free light chains. 0.26 to 1.65 ratio of kappa/lambda.
What are symptoms of kappa light chain disease?
Symptoms of these disorders may include:
- Anemia.
- Unusual bruising or bleeding.
- Bone lesions.
- Bone pain.
- Fatigue.
- Kidney problems or kidney disease.
- Numbness or tingling in arms and legs.
- Skin rash or purple spots on your skin.
Does myeloma cause hip pain?
Multiple myeloma can cause pain in affected bones – usually the back, ribs or hips. The pain is frequently a persistent dull ache, which may be made worse by movement.
What part of the back hurts with multiple myeloma?
Multiple myeloma can cause pain in any bone, but you’ll most likely feel it in your: Back. Hips.
What causes elevated Kappa free light chains?
– Bone pain – Fatigue – Numbness or tingling in arms and legs – Tongue swelling – Purple spots on the skin
What is the normal Kappa to lambda ratio?
The exact normal ratio of kappa to lambda, according to a novel polyclonal free light chain assay, ranges from 0.26 to 1.65. Both the kappa and the lambda chains can increase proportionately, maintaining a normal ratio. This is usually indicative of something other than a blood cell dyscrasia, such as kidney disease.
What are Kappa Lambda chains?
Immunoglobulin kappa-Chains
What are Kappa and Lambda ratios?
What if kappa and lambda ratio is high?