PND FISH Test
FISH(Fluorescent In-Situ Hybridization)
Confirming diagnosis through a targeted approach
FISH test looks at certain parts of the chromosomes and can even detect very small parts of chromosomes that are either missing or extra. A FISH test is usually conducted on a blood sample taken from a vein. For testing during pregnancy, it may also be done on a sample of amniotic fluid or CVS.