Illumistream Health video. Host is Dr. Matthew H. Erdelyi, Ph. D. It can be tough to diagnose ADHD. Symptoms of ADHD include impatience, fidgeting, and an inability to focus. Children with ADHD are intelligent and extremely creative, they have less control over their impulses. Diagnosing ADHD is tricky, there is no blood test, MRI, or medical procedure. Only a doctor can diagnose ADHD, when looking for a doctor look for one that has experience with ADHD. If the symptoms have lasted six months or longer, are interfering with the ability to function and are more severe than other children of that age. Diagnosing ADHD is usually done after the age of five. Check with a physician if you have any questions. Video gives good information on ADHD. Video is good for parents and teachers who want to learn more about ADHD.