SRY FISH Analysis

Related Gene(s): SRY

SRY FISH (fluorescence in situ hybridization) is offered for diagnostic evaluation of individuals who have a 46,XX karyotype and are phenotypic males, or individuals who have a 46,XY karyotype and are phenotypic females. SRY FISH analysis may also be indicated for pregnancies or newborns with ambiguous genitalia.

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 tube (green top)

Ordering Information


  • Ship at room temperature

Turnaround Time

  • 7-10 days


Prenatal Test Requisition with Natera NIPT
Prenatal Test Requisition with Sequenom NIPT
General Test Requisition