ADHD Diagnosis - Getting the Right One From the NHS To give people an accurate diagnosis of ADHD, the NHS requires a thorough assessment. The BBC investigation revealed that some private clinics might be handing an unreliable diagnosis or prescribing the wrong medications. A legitimate diagnosis of ADHD is based http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372103