<prompt> Which of the following decreasing preload -HydralazineNifedipineNitroglycerineLosaan  <response>: Ans: C .Nitroglycerine Ref: KDT 7e p. 522Preload:End-diastolic pressure when the ventricle is filled.Depends on venous return more the venous return, more is the preload.Drug which dilate veins will decrease the venous return and there by preload.Drugs which decrease the body fluid diuretics also decrease venous return and preload.Examples are - Nitrates 