In 1991 a DNA test, the FMR-1 gene test, was introduced. The chromosome test is still available through most labs and is used for a variety of diagnostic purposes. In some cases, your physician may want to have both the DNA test and the chromosome test performed. However, if you are testing specifically for fragile X syndrome, please be certain that your physician is requesting the FMR-1 gene test. Please contact the labs directly for special handling instructions before collecting a sample to be used for prenatal testing.
All labs require a referral from a physician in order to do testing.
Please have your physician's office contact the lab at the number listed to obtain further information regarding referral forms, exact cost of the test, and payment. Contact your insurance company directly and ask for the list of labs that they are contracted with for fragile X testing. The labs that you have access to may or may not be listed below. If any are listed below, request that your physician send your sample to that laboratory. Please either contact the lab directly or have your physician's office contact the lab at the number listed to obtain further information regarding referral forms.