ADHD Diagnosis - Getting the Right One From the NHS To give people an accurate diagnosis for ADHD the NHS requires a thorough evaluation. The BBC investigation revealed that some private clinics may be giving inaccurate diagnoses and prescribing inappropriate medication. A valid ADHD diagnosis is based on symptoms that http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1556480