ANGELMAN SYNDROME AND PRADER-WILLI SYNDROME BY METHYLATION

Test Documentation
Specimen Required
Draw blood in lavender EDTA tube. Send 3.0 mL (1.5 mL minimum) whole blood refrigerated.

Alternate Specimen
ACD Solution A or B

Rejection Criteria
Severely hemolyzed specimens

Methodology
Methylation Sensitive Polymerase Chain Reaction/Fluorescent Monitoring

Stability
Room Temperature: 72 hours; Refrigerated: 7 days; Frozen: Unacceptable

Reference Range
Interpretive Report

Performed
Monday, Thursday

Turnaround Time12-16 days
Test CodePWSA
CPT-4 Code (s)
81331
LOINC Codes
31208-2
35466-2

Warde
Medical
Laboratory