Prader Willi/Angelman PWILLI

Synonyms
Allscripts (AEHR) Order Name	Prader-Willi Angelman Methylation
Sunrise Clinical Manager (SCM) Order Name	Prader Willi/Angelman
EPIC Order Name	Prader Willi/Angelman methylation study
Clinical Info	Confirmation of diagnosis in patients suspected of having either Prader-Willi syndrome (PWS) or Angelman syndrome (AS) based on clinical assessment or previous laboratory analysis Prenatal diagnosis in families at risk for PWS or AS
Specimen Type	Blood
Container	Lavender Top Tube
Collection Instructions	Submit only 1 of the following specimens Specimen Type: Whole blood Container/Tube: Preferred: Lavender top (EDTA) or yellow top (ACD)Specimen Volume: 3 mL( 1 mL min) Collection Instructions:1. Invert several times to mix blood.2. Send specimen in original tube. Specimen Stability: Room Temperature (preferred)/Refrigerated Prenatal Specimens Due to the complexity of prenatal testing, consultation with the laboratory is required for all prenatal testing. Specimen Type: Amniotic fluid Container/Tube: Amniotic fluid container Specimen Volume: 20 mL(10 mL min) Specimen Stability Information: Refrigerated Container/Tube: T-25 flask Specimen Volume: 2 flasks Collection Instructions: Submit confluent cultured cells from another laboratory. Stability Information: Room Temperature
Transport Instructions
Specimen Stability	See above for Specimen Type
Methodology	Multiple Ligation-Dependent Probe Amplification (MLPA)
Days Performed	TAT: 11- 15 Days
Performing Laboratory	Mayo Medical Laboratories Mayo Test code PWAS
CPT	81331 LOINC Code: 35466-2
PDM	5906053
Result Interpretation An interpretive report will be provided.
Forms