The yellow line on a Swan-Ganz catheter corresponds to which port?

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Multiple Choice

The yellow line on a Swan-Ganz catheter corresponds to which port?

Explanation:
The yellow line marks the distal lumen port. This lumen opens at the catheter tip that sits in the pulmonary artery and is used to measure pulmonary artery pressures; when the balloon is inflated to wedge, it provides the wedge pressure (PCWP), which estimates left atrial pressure. The proximal lumen and the balloon lumen serve other functions, but the color-coded distal lumen is the one at the tip, hence the yellow line corresponds to that port.

The yellow line marks the distal lumen port. This lumen opens at the catheter tip that sits in the pulmonary artery and is used to measure pulmonary artery pressures; when the balloon is inflated to wedge, it provides the wedge pressure (PCWP), which estimates left atrial pressure. The proximal lumen and the balloon lumen serve other functions, but the color-coded distal lumen is the one at the tip, hence the yellow line corresponds to that port.

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