Specimen

Peripheral Blood

Minimum:

5-10 cc adult, 2 cc infants (the minimum draw may preclude complete 
testing, please contact the lab) of venous blood collected in a 
green-top vacutainer with sodium heparin.  Invert tube to mix well.  
Label the tube with patient name and medical record number.  DO NOT 
FREEZE OR CENTRIFUGE

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection.

Specimen
Instructions:

If a specimen is collected over the weekend, please page the 
technologist on call by dialing 1-888-533-0186.  When it stops ringing, 
enter your phone number, the '#' sign, and hang up.  Provide details of 
clinical information (for example: rule out Fanconi anemia, Ataxic 
telangiectasia, or Bloom syndrome) and family history (if applicable).

Testing Schedule:

Specimens accepted in the lab Monday-Friday, 0800-1700.  After hours 
specimens should be taken to specimen control and a message left on the 
lab voice mail.  In the case of an emergency, follow the instructions 
on the lab voice mail.

Analytic Time:

Allow 2-3 weeks for final results.

Reference Range:

Male: 46,XY    Female: 46,XX   Cells with breakage compared to control.

Comments:

Breakage studies are cultured with a concurrent control.  If the 
patient has been transfused, wait a minimum of two weeks before 
obtaining the specimen.


Cytogenetics Laboratory Web Site

CPT Code:

88230, 88248

See Additional Information:
Cytogenetics Testing