Prader-Willi/Angelman Duplication , Cytogenetics FISH Study

Tube Type = Green Top

Tube Type

AKA 15q11.2 duplication

Test ID LAB5505A
EPIC Order Cytogenetics Postnatal (blood) order
CPT Code(s) 88271x2, 88273, 88230 (if performed), 88291
Group/Individual Test Individual
Laboratory Cytogenetics
Tube Station 30 (Core Laboratory)
Specimen Routine: 5 mL whole blood/Sodium Heparin/Green Top Tube; See comments for additional specimen information
Micro: 2-5 mL whole blood Pediatric: Green Sodium Heparin Tube
If additional testing is requested, a larger sample may be requested
Availability Routine: 24 Hours/7 Days
Rush: RUSH STATUS AVAILABLE 24 hours/7days in lieu of STAT
Turnaround Time Routine: <28 days
Rush: Preliminary 3 working days with Final within 14 days
Reference Range Normal: N/A
Comments
  • Deliver sample to the Core Laboratory.
  • If post-mortem, obtain by cardiac puncture within 1 hour. Keep at room temperature.
  • Call the Cytogenetics Lab at 984-974-1790 with questions.

Reviewed by J. Carr on January 14, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514