Kappa Free Light Chains (Bence Jones Protein), Quantitative, Urine
0050689
 
Ordering Recommendation
Quantify and determine clonality of free kappa light chains (Bence Jones protein) in urine.
Mnemonic
BJQNTKAPP
Methodology
Quantitative Nephelometry/Qualitative Immunofixation Electrophoresis
Performed
Mon-Fri
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
24-hour urine. Refrigerate during collection. Also acceptable: Urine supernate.  
Specimen Preparation
Transfer two 4 mL aliquots from a well-mixed 24-hour urine collection to individual ARUP Standard Transport Tubes. (Min: 3 mL) Record total volume and collection time interval on transport tube and test request form.  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
 
Remarks
 
Stability
Ambient: 2 hours; Refrigerated: 1 week; Frozen: Unacceptable  
Reference Interval
Total Protein: 10-140 mg/d
Albumin: Detected
Alpha-1 Globulins: None detected
Alpha-2 Globulins: None detected
Beta Globulins: None detected
Gamma Globulins: None detected
Free Kappa Light Chains: 0.14 - 2.42 mg/dL
Free Kappa Excretion/day: By report
IFE Interpretation: By report
Interpretive Data
Note
CPT Code(s)
84156; 86335; 83883
Components
Component Test Code*Component Chart Name
0050025Albumin, Urine
0050050Alpha-1, Urine
0050055Alpha-2, Urine
0050120Urine Beta Globulin
0050285Gamma, Urine
0050565Total Protein
0050683Free Urinary Kappa Light Chains
0050684Free Urinary Kappa Excretion/Day
0050688IFE Interpretation
0097110Total Volume
0097111Hours Collected
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Free Kappa Light Chains, IFE