FISH Analysis (Postnatal)
Postnatal Chromosome Analysis is required when ordering this test.
- Physical exam suggestive of Down syndrome, trisomy 13, 28, or sex chromosome aneuploidy (X,Y)
- RAPID Aneuploidy FISH will be performed when samples are received on newborns 3 months of age or younger, enabling results to be available within 24-48 hours.
Constitutional (Targeted) FISHPostnatal Chromosome Analysis is recommended when ordering this test.
- Multiple congenital abnormalities with or without intellectual disability that suggest a specific microdeletion or microduplication
Family history of a prior child with a previously identified microdeletion/microduplication or familial chromosome abnormality