<prompt> Nitrates decrease myocardial oxygen consumption by all of the following mechanisms except -By increasing the left ventricular end diastolic pressureBy direct reduction of oxygen consumption of the myocardial cellBy dilation of the capacitance vesselsBy decreasing the size of hea  <response>: Ans. is a i.e., By increasing the left ventricular end diastolic pressure o Nitratets dilate veins capacitance vessels and decrease venous return preloado This results in decreased end diastolic pressure and left ventricular size not increased, which ultimately leads to decreased oxygen consumption. 