<prompt> Definition of nuclear medicine includes which of the following?Field of medicine helpful for radiotherapeutic management of all.Field of medicine, which provides both physiological, structrual information in non-quantifiable form.Field of medicine helpful for location extent of cancer but with many hazards.Field of medicine which depends on accretion, transit disappearance of radioactive tracer in specific regions of body useful in management of cancer.  <response>: Ans. d Field of medicine which depends on accretion, transit disappearance of radioactive tracer in specific regions of body useful in management of cancer. Ref. Modem Trends in Radiotherapy by Deeley, 216 Nuclear medicine is the field of medicine which depends on accretion, transit disappearance of radioactive tracer in specific regions of body hence useful in management of cancer. It provides both physiological and structural information in a quantifiable form. It is helpful for location and extent of cancer without much hazards discomfort to patient. 