FRCR MCQ ---NEUTRINO

6.True regarding neutrino

a.released during beta decay

b.an extremely small mass

c.no charge

d.interacts extremely weekly with matter

e.no effect on patients

ANS OF PREVOUS BLOG

24.True regarding radionuclides 

a.Indium-111,2.8 day half-life,emit 173 keV and 247 keV gamma rays,labeling blood products

b.Iodine -123,13hr half –life, emit 160 keV gamma rays ,used for thyroid imaging

c.Iodine-131,8days half-life,emit 360 keV gamma rays and negative beta particle,used in metastases from carcinoma of thyroid

d.Gallium-67,72  hrs half-life,emit 92 keV,182keV and 300keV ,used in soft tissue malfnancy and infection

e.carbon ,20 minutes half –life, emit positron giving 511 keV gamma rays ,used for Co₂ for regional cerebral blood flow

ANS  abcde --all correct