Immune & proteins
Kappa Free Light Chains
Free kappa light chains in blood — one half of the ratio above. Higher results are the ones to watch. A common adult reference interval is 3.3–19.4 mg/L.
Typical adult range
- Reference interval
- 3.3–19.4 mg/L
- Often-cited tighter window
- 3.3–19.4 mg/L
Standard adult laboratory reference interval. Your own lab's printed range is the one that applies to your result.
What commonly moves it
- Plasma-cell / paraprotein activityClonal light-chain production raises globulin and can suppress marrow output.
What it can affect downstream
These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.
Watching Kappa Free Light Chains over time?
Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.
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