Radioisotope(s) preferred for management of bone metastasis is/are?: (A) I-131, (B) Iridium 192, (C) Sr-89, (D) Co-60
Answer is C. Sr-89 Radioisotope,a beta Emitter used in the palliation of painful Bone metastasis It is metabolised similar to calcium and targets the metabolically active regions of the bone It has a half life of 50.5 Days