title: Rapid bolus injection of radioisotopes.
mesh_terms: D001132:Arm / Q000098:blood supply; D003102:Colloids; D003326:Coronary Circulation; D006801:Humans; D007275:Injections, Intravenous; D011865:Radioisotope Dilution Technique; D011868:Radioisotopes / Q000008:administration & dosage*; D011877:Radionuclide Imaging; D013667:Technetium; D013997:Time Factors; D014636:Valsalva Maneuver
chemical_list: D003102:Colloids; D011868:Radioisotopes; D013667:Technetium