Chromosome Analysis Peripheral Blood (Constitutional)

Test ID: CYTO PB CPT Code: 88230, 88262, 88291, additional counts 88285

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Expected Turnaround Time

7 days
Stated turn-around-times (TATs) are for clinical use only and subject to change based on biopharma protocol requirements. Final TATs will be specified in the biopharma study contract.

Clinical Information

Constitutional cytogenetic analysis of peripheral blood lymphocytes. This is performed to detect germline chromosomal abnormalities, including numerical and structural abnormalities.

Specimen Requirements

Whole Blood: 5 mL, EDTA preferred (NaHep accepted)

Specimen Stability

72 Hours

Storage Requirements

Whole Blood: 2°C to 25°C
Fixed Cytogenetically Prepared Cells: -28°C to -15°C

Shipping Recommendations

AMBIENT, Use a refrigerated (NOT FROZEN) gel pack in the shipment to protect from extreme temperatures. Separate gel pack from specimen. Do not freeze.

Specimen Rejection Criteria

Clotted specimen; Specimen exposed to extreme temperature; Anticoagulant toxic to cells; Insufficient number of cells

Test Details

Synonyms

Chromosome analysis, cytogenetic analysis, karyotyping, G-banding

Keywords

Cytogenetics, Prenatal Diagnostics, Women's Health, Constitutional Cytogenetics, Karyotyping

Test Method

Karyotyping

Methodology Category

Cytogenetics

Regulatory Status

RUO

Special Considerations

All attempts will be made to process and report samples received > 72 hours post-collection. Bone marrow is the sample of choice in most heme malignancies.

Associations

Numerical and structural chromosomal abnormalities associated with constitutional disease

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