Questions on the Vanderbilt Assessment Scale include whether a person pays close attention to details and seems to listen when directly addressed, according to MyADHD. The Vanderbilt Assessment Scale is one method among many that medical professionals use to diagnose attention deficit hyperactivity disorder, or ADHD.
Doctors rely on interviews with parents, personal observations and psychological tests to diagnose ADHD, in addition to questionnaires and rating scales, states WebMD. After establishing an ADHD diagnosis, a doctor must determine which category of ADHD the symptoms indicate. ADHD may manifest as the inattentive type, hyperactive-impulsive type or combined type, which is the most common.
It is important for a doctor to determine the extent to which the ADHD symptoms affect the person's lifestyle, behavior and productivity, explains WebMD. It is also important to rule out other possible causes of abnormal behavior by administering hearing and eyesight tests; blood tests for lead levels or thyroid disease; and tests to measure electrical activity in the brain. Professionals may request a computed tomography scan or magnetic resonance imaging to eliminate the possibility of brain abnormalities. Once a doctor diagnoses ADHD, he may recommend a treatment plan including medications and behavioral therapy designed to relieve symptoms.