Kappa-Lambda Quant Free Light Chain Ratio, Blood
Label Mnemonic: | KLFQT |
Epic code: | LAB7454 |
Order form: | Laboratory Requisition |
Supply order: | Supply Order Form |
Billing: | Billing Policies |
CPT code: | 83883 x2 |
Specimen(s):
Blood
Collection Medium:
Pink top tube 6 mL (K2-EDTA) |
Minimum:
Preferred Minimum: 3 mL whole blood
Rejection Criteria:
Plasma separator tube
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
Lambda Quantitative Free Light Chains 5.7 - 26.3 mg/L Kappa Quantitative Free Light Chains 3.3 - 19.4 mg/L Kappa/Lambda Free Light Chain Ratio 0.26 - 1.65
Comments:
This assay is highly sensitive to increasing concentrations of
monoclonal free kappa or free lambda light chains in the serum of
patients with evolving or relapsing myelomas.
Methodology:
Turbidimetric
Sample
Processing:
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells within 1 hour of collection.
Separate plasma into screw-capped plastic vial.
Do not send primary tube if all plasma has been transferred to another tube.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.
Separate plasma into screw-capped plastic vial.
Do not send primary tube if all plasma has been transferred to another tube.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.
Sample
Storage:
Refrigerate.
All sample storage requirements are intended for delivery to UIHC within 24 hours of collection for testing. If samples won't arrive in this time period, please call the UIHC Core Lab for alternative storage/shipping instructions (319-356-3527).
All sample storage requirements are intended for delivery to UIHC within 24 hours of collection for testing. If samples won't arrive in this time period, please call the UIHC Core Lab for alternative storage/shipping instructions (319-356-3527).
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
83883 x2