417. Preload describes what measurable parameter? Key values for pulmonary artery occlusion pressure / 2 major components of SVR / Components of MAP July 11th, 2008 by reuben in CHF Back Top Tags: card 416. Define heart failure / Heart failure prognosis and cause of death / Normal cardiac index & physiologic parameters determining cardiac output and CI / Describe the Frank-Starling relation 418. How does an arterial dilator cause an increase in cardiac output? / Who does a venodilator relieve pulmonary congestion? / Causes of decreased contractility / Pathophysiology and etiologies of noncardiogenic pulmonary edema Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.