Chromosome Analysis, Blood, Leukemia

Abbrev Code:BLLEUK   
Order Code:LAB4695Order Name:Chromosome Analysis, Blood, Leukemia
Synonyms:LEUK BL; Leukemic Blood; Cancer Neoplastic
Methodology:Chromosome analysis by G-banding. Neoplastic.
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:Whole blood
Optimal Volume:10 mL
Minimum\Peds Volume:5 mL
Container:Green (sodium heparin, no gel)
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 the above times will be processed the following day
Shipping Instructions:Ship at room temperature.
Must arrive within 24 hours.


Test Performed at or Referral Lab Cytogenetics  (UMMC East Bank)

Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact: for TestID: 4187"