ADHD Diagnosis - Getting the Right One From the NHS The NHS requires that patients undergo a thorough examination in order to get a proper ADHD diagnosis. The BBC investigation revealed that a few private clinics could be distributing inaccurate diagnoses and prescriptions. A legitimate diagnosis of ADHD is based http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372994