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B-Cell Clonality: IgH/IgK gene rearrangement

Tube Type = Lavender Top

Tube Type

IgH/IgK Gene Rearrangement

Test ID		LAB5663
EPIC Order		IgH and IgK Clonality Assay
CPT Codes		81261, 81264, G0452
Laboratory		Molecular Genetics Laboratory
Tube Station		30
Specimen	Routine:	Performed on DNA extracted from blood and bone marrow. Blood (3mL) &/or bone marrow (1mL) must be collected in ACD-A tubes or Lavender EDTA tubes. Do not use heparin. Fresh frozen tissue and formalin paraffin-embeddd tissue are also acceptable. See Comments
Availability	Routine:	Weekly; no Weekends/Holidays
Turnaround Time		10 days
Reference Range		No B cell clone detected

Comments	Please call Lab 984-874-1825 with questions. This test is ordered by the Hematopathology service. *Additional information:* Laboratory Tests for B- and T-cell Clonality based on Immunoglobulin and T-Cell Receptor Gene Rearrangement Molecular Genetics Test Request form Direction for collection and mailing of specimens for Molecular Genetics Testing

Reviewed by JLCARR on November 20, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514