ARUP's Laboratory Test Directory
| 0050682: Bence Jones Protein, Quantitative Free Lambda Light Chains, Urine |
| Test Mnemonic: BJQNTLAMB | |
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Methodology: Nephelometry/Immunofixation Electrophoresis
Performed: Mon-Fri Reported: 1-5 days |
| Specimen Required: | |
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Collect: 24-hour urine. Urine supernate is also acceptable. Specimen needs to be refrigerated during collection.
Transport: Two 4.5 mL aliquots from a well-mixed 24-hour urine collection at 2-8°C. (Min: 4.5 mL) Submit specimen in two ARUP Standard Transport Tubes. Remarks: Keep refrigerated at all times. Record total volume and collection time interval on transport tube and test request form. Unacceptable Conditions: Random specimens. Specimens that are not refrigerated. Stability: Ambient: 2 hours; Refrigerated: 1 week; Frozen: 1 month |
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| Reference Interval: |
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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 Lambda Light Chains: 0.02 - 0.67 mg/dL Free Lambda Excretion/day: By report IFE Interpretation: By report |
| CPT Code(s): | |
| 84156 Total protein; 86335 IFE; 83883 Nephelometry, lambda |