What is a regadenoson injection?
A regadenoson injection is a diagnostic radiopharmaceutical agent commonly used during cardiac stress tests to evaluate blood flow to the heart. It is typically administered in patients who cannot adequately perform exercise stress testing. Regadenoson, marketed under the brand name Lexiscan, acts by dilating coronary arteries to mimic the effects of physical exercise on the heart. It is predominantly utilized by cardiologists and radiologists during myocardial perfusion imaging (MPI) procedures. By assisting in revealing areas with insufficient blood flow, regadenoson injections help providers accurately diagnose coronary artery disease and related cardiac conditions.






