خانه > بایگانی برچسب ها : خواندن فشار ورید مرکزی CVP

بایگانی برچسب ها : خواندن فشار ورید مرکزی CVP

فشار ورید مرکزی CVP

فشار ورید مرکزی CVP

فشار ورید مرکزی CVP Central venous pressure (CVP) Central venous pressure (CVP) is the blood pressure in the venae cavae, near the right atrium of the heart. CVP reflects the amount of blood returning to the heart and the ability of the heart to pump the blood back into the arterial system. CVP is often a good approximation of right atrial pressure (RAP),[1] although the two terms are not identical, as a pressure differential can sometimes exist between the venae cavae and the right atrium. CVP and RAP can differ when arterial tone is altered. This can be graphically depicted as changes in the slope of the venous return plotted against right atrial pressure (where central venous pressure increases, but right atrial pressure stays the same; VR = CVP − RAP). (wikipedia) Central venous pressure is considered a direct measurement of the blood pressure in the right atrium and vena cava. It is acquired by threading a central venous catheter (subclavian double lumen central line shown) into any of several large veins. It is threaded so that the tip of the catheter rests in the lower third of the superior vena cava. The pressure monitoring assembly is attached to the ... ادامه مطلب »