Nitrates decrease myocardial oxygen consumption by all of the following mechanisms except -
Ans. is 'a' i.e., By increasing the left ventricular end diastolic pressure o Nitratets dilate veins (capacitance) vessels and decrease venous return (preload)o This results in decreased end diastolic pressure and left ventricular size (not increased), which ultimately leads to decreased oxygen consumption.
By increasing the left ventricular end diastolic pressure
By direct reduction of oxygen consumption of the myocardial cell
By dilation of the capacitance vessels
By decreasing the size of hea