Anyone have experience with the ToVA

My pysch wants me to get a tova and liver blood work done before prescribing stimulants. I have never done the ToVA it seems like a relatively short test. A cursory search so it's accuracy is below 90% which worries me. What worries me even more is what if it shows I don't have ADHD and I am secretly just a terrible lazy person.

Anyone care to share their experiences?