Clinical and Molecular Cytogenetics Laboratory

University of Texas Health Science Center | Department of Pathology, MSC-7750 | 7703 Floyd Curl Drive | San Antonio, TX 78229-3900

 

Test Name

Fluorescence In Situ Hybridization Prader-Willi Syndrome

Test Overview

CPT Code(s)

Peripheral Blood: 88230-52, 88271, 88273, 88291

Amniotic Fluid: 88235-52, 88271, 88273, 88291

 

Methodology

Culture/Hybridization/Microscopy/Interpretation

 

Specimen Requirements

 

 

Peripheral Blood

Amniotic Fluid

Container

Sodium Heparin (green top tube)

Two 15 ml sterile leak-proof conical tubes

Optimal Quantity

2-3 ml

20-25 ml

Minimum Quantity

1-2 ml

10 ml

Storage

Room Temperature

Room Temperature

Stability at Room Temperature

Room Temperature for 8 hours, then refrigerate

Room Temperature for 8 hours, then refrigerate

Transportation

Avoid freezing or heating over 35oC

Avoid freezing or heating over 35oC

 

Turnaround Time

Peripheral Blood: Final report in 5 days for 90% of cases

Amniotic Fluid: Final report in 7-10 days for 90% of cases