What is the name of the catheter used to measure cardiac output and right heart pressures?

• A. Balloon catheter
• B. Foley catheter
• C. Swan-Ganz catheter
• D. Indwelling catheter

Answer: (C)

The catheter used to measure cardiac output and right heart pressures is called a Swan-Ganz catheter. This specialized device is designed to be placed in the pulmonary artery, allowing for the direct measurement of pressures within the heart and lungs, including right atrial pressure, pulmonary artery pressure, and pulmonary capillary wedge pressure. By providing these critical measurements, the Swan-Ganz catheter is invaluable for assessing cardiac function and fluid status in various clinical situations, such as during major surgery, in intensive care settings, or in patients with heart failure.

In contrast, other catheters such as the balloon catheter are used for different applications, typically in procedures like balloon angioplasty, while a Foley catheter is primarily for bladder drainage. An indwelling catheter can refer to any catheter placed within the body for an extended period, but it does not specialize in measuring cardiac parameters. Thus, the correct identification of the Swan-Ganz catheter is crucial for understanding its role in cardiac monitoring and assessment.