Chromosome Analysis, Bone Marrow, Diagnosis/Relapse

Sunquest Code:BMCHCGCoPath Code:BMCHRMB
Epic Code:LAB890Epic Name:Bone Marrow
Sunquest Code (non-Epic sites):BMCHCG  
Methodology:Chromosome analysis by G-banding.
Turnaround Time:Results are reported within 2-21 days.
Special Instructions:Test request form requires:
  • Date and time of specimen collection
  • Specimen type
  • Patient information: date of birth, sex and medical record number
  • Orderin physician and contact number
  • Reason for referral
  • Clinical status
  • Information regarding medications or transfusions
  • Previous or pending genetic testing results

Collection Instructions

Specimen:Bone marrow aspirate or trephine biopsy
Optimal Volume:5 mL bone marrow aspirate or 1 cm trephine biopsy
Minimum\Peds Volume:3 mL bone marrow aspirate or 1 cm trephine biopsy
Container:Dry heparin syringe (Container, Tissue, sterile)
Collection Instructions:

If aspiration is impossible, a trephine biopsy should be obtained. Collect 5 mL of sodium heparinized peripheral blood in addition to the bone marrow in all cases of newly diagnosed acute leukemia.

·    Bone marrow aspirate: Collect in sterile sodium heparin syringe.

·    Bone marrow biopsy: Collect in sterile specimen cup with tissue culture medium. 


Causes for Rejection:Clotted or frozen specimen.

Processing and Shipping

Specimen Processing:Store at room temperature. Do NOT refrigerate or freeze. Do not process.
Specimens must be received in the Cytogenetics Laboratory Mon-Fri by 5:30 pm. Weekends and holidays by 4:30 pm.  specimens received after these cutoffs will be processed the following day.
Shipping Instructions:Ship at room temperature. For optimal testing results the specimen must arrive within 24 hours.
Test Performed at or Referral Lab Cytogenetics  (UMMC-East Bank)

Click HERE to Report test errors or omissions.
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