<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 myocardial the cellBy dilation of the capacitance vesselsBy decreasing the size of hea  <response>: Nitrates decrease the ventricular end diastolic pressure by decreasing end-diastolic ventricular volume they cause venodilation, decreases oxygen consumption by hea and en diastolic pressure They are mainly useful in treating angina. REF.Essentials of Pharmacology KD Tripathi 8th ed. 