The primary mechanism by which beta-blockers reduce angina is via decreased contractility, which reduces the oxygen demand of the myocardium (which has a constrained supply due to coronary artery disease). Lowering heart rate also helps, but that isnโt one of your choices.
submitted by โbwdc(697)
The primary mechanism by which beta-blockers reduce angina is via decreased contractility, which reduces the oxygen demand of the myocardium (which has a constrained supply due to coronary artery disease). Lowering heart rate also helps, but that isnโt one of your choices.