what tests are done for neurofibromatosis
If the doctor or genetic counselor suspects that a person has neurofibromatosis type 2, diagnostic testing may take place as follows: 1  A blood sample is collected. 2  DNA is isolated from the cells in the sample. 3  A personâs genes are made of DNA.
It is important to remember that genetic testing only finds a mutation in the NF2 gene for about 90 to 95 percent of people with neurofibromatosis type 2 and a family history of the condition. This number drops to 60 to 75 percent of people with no family history of the condition.