How soon can you test for neurofibromatosis? my gf is three months along.

Depends: Prenatal testing for the nf1 mutation is available through amniocentesis, usually done around 16 wks, or earlier with cvs biopsy.Testing for the nf2 gene is accurate only 65% of the time & subject to limited availability.Only specialty labs do this work & coordination of the sampling & specimin transfer is important. With a 50% inheritance rate i would prepare for a + result.

If family history: There are prenatal genetic tests for neurofibromatosis. While test results can provide very important information for future parents. Genetic tests available today can be performed only when there is a family history of nf; prenatal tests include chorionic villus sampling can be performed at 10 weeks gestation. Amnioncentesis is performed at 16 weeks.