The most sensitive test to detect GI bleeding is -: (A) Selective angiography, (B) Radiolabelled, erythrocyte scanning, (C) I 131 Fibrinogen studies, (D) Stool for occult blood
Answer is B. • Radionuclide scanning with technetium-99m (99mTc)-labeled RBCs is the most sensitive but least accurate method for localization of GI bleeding