Test Method
Cytogenetics
CPT Codes
88237x2, 88264, 88280
Test Description
In optimal samples, this test evaluates neoplastic tissue in lymph nodes, blood, fluid and bone marrow for structural chromosomal abnormalities. It includes mitogen culturing, 20-25 cell analysis and two karyotypes.
Specimen Requirements
- Bone marrow aspirate: 2-3 mL in sodium heparin (green top)
- Peripheral blood: 5 mL in sodium heparin (green top)
- Fresh Tissue: Multiple 2-3 mm pieces of tissue in RPMI transport media (optimum RPMI to tissue ratio is 15:1; (multiple vials are acceptable)
- Body Fluids: Mix 1:1 in RPMI transport media
- Cord Blood: 2-5 mL in sodium heparin (green top)
Storage & Transport
Ship specimen the same day whenever possible, with refrigerated (not frozen) cold pack.
Label all tubes with at least two unique patient identifiers. Identifiers include name, DOB, specimen ID# or medical record#.
Label all tubes with at least two unique patient identifiers. Identifiers include name, DOB, specimen ID# or medical record#.
Turnaround time
6-8 Days (blood and lymph) 14 Days (tissue)
Level of Service
Global