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Chromosome Analysis, Hematologic Malignancy
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Test Code
CHROM
CPT Codes
88237, 88264
Preferred Specimen
3 mL bone marrow or 10 mL whole blood collected in a sodium heparin (green-top) tube
Minimum Volume
1 mL
Other Acceptable Specimens
Sodium heparin (royal blue-top) tube • Sodium heparin lead-free (tan-top) tube
Instructions
Bone marrow 3 mL or whole blood 10 mL, must contain 10% less mature myelocytes, pros or blasts. (green Vacutainer® only).
Infants 2-3 mL (in pediatric 3 mL Vacutainer®), must contain 10% myelocytes, pros or blasts. Ship at room temperature.
Bone marrow transport medium is available upon request.
Note: See the "Cytogenetics" section of the specimen collection guide for additional information. Other Vacutainer® tubes containing sodium heparin are acceptable.
Infants 2-3 mL (in pediatric 3 mL Vacutainer®), must contain 10% myelocytes, pros or blasts. Ship at room temperature.
Bone marrow transport medium is available upon request.
Note: See the "Cytogenetics" section of the specimen collection guide for additional information. Other Vacutainer® tubes containing sodium heparin are acceptable.
Transport Temperature
Room temperature
Specimen Stability
Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. Do not reject.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received frozen
Methodology
Culture • Karyotype • Microscopy
Setup Schedule
A.M. Sets up 7 days a week.
Report Available
Reports in 8 to 9 days.
Reference Range
See Laboratory Report
Clinical Significance
Cytogenetics of hematologic disorders attempts to define and interpret chromosomal aberrations that occur in neoplastic cells associated with leukemia, lymphoma and other hematologic malignancies. Chromosome abnormalities in cancer cells of patients with malignant hematologic disorders including acute and chronic myeloid and lymphoid leukemias, myelodysplastic and myeloproliferative disorders, lymphomas and unexplained anemias may correlate with the diagnosis, prognosis, treatment and etiology of disease.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042