This book has been written with the aim to outline the major areas of Nuclear Medicine and Radiotherapy i.e. Factual data, Commonest cause, Basic concepts and Recent advances. This book is not merely an addition to the existing list of books on MCQ but a sincere ambition and an honest attempt to make it a useful and practical companion to medical graduates and postgraduates and other paramedical students. The present book consists of original solved MCQ from the Question Banks of various important examinations (AIIMS, Delhi, PGI, All India etc.), Important text and original solved MCQ have also been added.