Hi Markrisgold,

A DNA test is done when the Dr. will take saliva and blood from a person this will show what DNA the body is made up of and by doing this the neuro can find out what AED's (sz. meds) will work the best for a person to control the sz. and they will have the least side effects inside of trying drug after drug and then finally finding out that only certain meds will work.
I had this test done a few yrs. ago and I found out I was mostly drug resistant meaning that no sz. med is going to stop my sz. but they found that the drugs mysoline, diamox, and vimpat have helped me the most and I didn't have that many side effects like I have with many other meds. Here's wishing you well and May God Bless You!

Sue