Which of the following radiopharmaceutical is used in Imaging of Reticulo endothelial system: (A) Tc-99m Red blood cells, (B) Tc-99m Pyrophosphate, (C) Tc-99m Sulfur Colloid, (D) Tc-99m Teboroxime
Answer is C. Tc-99m Sulfur Colloid -Imaging of RES, Gastric emptying, GI bleeds.