1.Central venous pressure (CVP) is the measurement of right heart filling pressure. Central venous pressure (CVP) measured in superior vena cava (SVC) is identical to right atrial pressure (RAP). CVP is most commonly elevated in the setting of biventricular heart failure. 2.enous and arterial catheters provide the most accurate method for hemodynamic monitoring. The nurse must be confident that central venous pressure (CVP) and arterial BP measurements are accurate. The phlebostatic axis is the reference point for zeroing the hemodynamic monitoring device. This reference point is important because it helps to ensure the accuracy of the various pressure readings. Nurses must ensure the accuracy of their hemodynamic monitoring devices.