Williams Syndrome FISH Analysis
Williams syndrome, chromosome location 7q11.23, FISH (Fluorescence In Situ Hybridization) is offered for diagnosis of individuals with clinical features of Williams syndrome (intellectual disability, unique personality characteristics, cardiovascular disease, connective tissue abnormalities). The detection rate of FISH analysis for this disorder is approximately 99%.
Whole blood in sodium heparin (green top) tube, minimum 5-10 ml
This test can also be performed on prenatal specimens; see test "Prenatal Microdeletion FISH Panel"
Shipping: Ship at room temperature.
Turnaround Time: 7-10 days
CPT Codes: 88230, 88271x2, 88274, 88291
Consent Form: Postnatal Consent [PDF]
Requisition Form: General Test Requisition [PDF]