Angelman Syndrome FISH Analysis

Related Gene(s): ATPIOA. GABRB3, UBE3A

Angelman syndrome (chromosome location 15q11.2q13) FISH (fluorescence in situ hybridization) is offered for diagnosis of individuals with clinical features of Angelman syndrome, including severe intellectual disability, severe speech impairment, or seizures. The detection rate of FISH analysis for this disorder is approximately 70%.

Specimen Requirements


  • Amniotic fluid: Minimum total specimen size 15 mL
  • Chorionic villi: Minimum total specimen size 4 mg


  • Whole blood: Minimum 5-10 mL in sodium heparin (green top)

Ordering Information


  • Ship at room temperature

Turnaround Time:

  • Prenatal: 5-7 days
  • Postnatal: 7-10 days

Related Tests:


Prenatal Test Requisition with Natera NIPT
Prenatal Test Requisition with Sequenom NIPT
General Test Requisition
Chromosomal Microarray Information Sheet