Specimen:

Peripheral Blood (Newborn or Cord, and Others)

Minimum:

2 cc of infants 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.
Provide details of clinical information and family history (if 
applicable). 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.

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:

Preliminary results are given for STAT cases within 48 hours.  Suitable 
for interphase and metaphase analysis.  Allow 2-5 days for final 
results.

Reference Range:

Male:  X and Y probe signals          Female:  two X probe signals
The reference range for autosomes varies for each probe, call lab for 
information.

Comments:

Cytogenetics Laboratory Web Site

Methodology:

Fluorescence In-Situ Hybridization (FISH)

CPT Code:

88230, 88271, 88275, 88365

See Additional Information:
Cytogenetics Testing