FISH, DiGeorge/Velo-Cardio-Facial Syndrome
DiGeorge/Velo-cardio-facial syndrome FISH (Fluorescence In Situ Hybridization) is offered for diagnosis of individuals with clinical features of DiGeorge/Velo-cardio-facial or 22q11 deletion syndrome (learning disabilities, cardiac defects, and psychiatric illness including schizophrenia and bipolar disorder) or in pregnancies with fetal heart defects. The detection rate of FISH analysis for this disorder is approximately 80%.
Blood: Whole blood in sodium heparin (green top) tube, minimum 5-10 ml
Amnio: minimum total specimen size 15cc
CVS: minimum total specimen size 4 mg
Shipping: Samples should be received on day of collection. Keep specimens at room temperature.
Turnaround Time: 7-10 days
Postnatal: 88230, 88271x2, 88274, 88291
Prenatal: 88235, 88271x2, 88274, 88291
Consent Form: Peripheral Blood Chromosomes and FISH Consent [PDF]
Requisition Form: General Test Requisition [PDF]
Related Tests: Prenatal Microdeletion FISH Panel