Table 4: Serum free light chain assay.

Test

Result

Unit

Reference Interval

Free kappa light chain

76.7

mg/L

Male: 7.1-22.49

Female: 4.7-21.54

Free lambda light chain

163.5

mg/L

Male: 8.8-23.26

Female: 7.61-23.5

Free kappa/Free lambda light chain ratio (without renal impairment)

0.47

 

Male: 0.57-1.25

Female: 0.5-1.2

Free kappa/Free lambda light chain ratio (with renal impairment)

 

 

0.37-3.1