Where is a Swan-Ganz catheter typically placed?

Choice A rationale The superior vena cava is the site where a central venous catheter is typically placed to monitor central venous pressure. A Swan-Ganz catheter, however, is a pulmonary artery catheter that is advanced beyond the superior vena cava, through the right atrium and right ventricle, and into the pulmonary artery. Choice B rationale The aorta is the body's main artery, and catheters placed here are used for arterial blood pressure monitoring or to access systemic circulation. A Swan-Ganz catheter is not placed in the aorta; its purpose is to measure pressures within the right side of the heart and the pulmonary circulation. Choice C rationale A Swan-Ganz catheter, also known as a pulmonary artery catheter, is placed in the pulmonary artery. It measures various pressures, including pulmonary artery pressure and pulmonary capillary wedge pressure, which provide information about left-sided heart function and pulmonary circulation status. Choice D rationale The left ventricle is part of the systemic circulation and is not the typical placement site for a Swan-Ganz catheter. This catheter is advanced through the right-sided heart chambers to reach the pulmonary artery, where it provides critical information about preload and afterload on the right side of the heart.