Surgery General 943c9dbd 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 High-Yield Explanation • Radionuclide scanning with technetium-99m (99mTc)-labeled RBCs is the most sensitive but least accurate method for localization of GI bleeding