Peripheral Vascular Resistance Calculation
Peripheral Vascular Resistance Calculation . Systemic vascular resistance reflects the resitance across the whole of the systemic circulation from aorta to right atrium (analogous to lv afterload). Mean arterial hydraulic pressure, mean venous hydraulic pressure, and mean blood flow are then measured. Cardiac output from www.slideshare.net In most patients, changes in vascular resistance reflect changes in arteriolar tone or changes in the viscosity of blood (often secondary to anemia or polycythemia). In most patients, changes in vascular resistance reflect changes in arteriolar tone or changes in the viscosity of blood (often secondary to anemia or polycythemia). To illustrate this relationship empirically, assume that r 1 = 5, r 2 = 10 and r 3 = 20.