<prompt> Aerial dilator used in treatment of congestive hea failure are All exceptHydralizineNifedipinePrazosinNitrates  <response>: Refer kDT 6e p540 Nitrates are primaryly venodilators. Hydralizine and nifedipine dilate mainly aerials whereas ACE inhibitors an alpha blockers dilate both aerioles as well as veins 