Chromosome Analysis, Bone Marrow, Diagnosis/Relapse


Abbrev Code:BMCHCG   
Order Code:LAB890Order Name:Chromosome Analysis, Bone Marrow, Diagnosis/Relapse
Synonyms:BMCHRMB; CHROMO BM; Cancer, Bone Marrow; G-band; Neoplastic
Methodology:Chromosome analysis by G-banding.
CPT Codes: 88237 x1, 88264 x1, 88280 x1, 88291 x1
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
  • Ordering physician and contact number
  • Reason for referral
  • Clinical status
  • Information regarding medications or transfusions
  • Previous or pending genetic testing results


A signed informed consent in the patient's medical record is required. The consent should not be sent to the laboratory. The link to the Genetic Testing Consent form is provided as a convenience for the providers and genetic counselors. See Associated Links.


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
Alternate Containers: 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. Incorrect specimen collection tube (anticoagulant).


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.
Stability:
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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