Which port on a Swan-Ganz catheter is used to measure cardiac output?
a. Distal c. Proximal
b. Inflation d. Thermistor
ANS: D
The thermistor is used to perform a thermodilution cardiac output measurement. The distal port is used to measure pulmonary pressure and when the balloon is inflated it is used to measure pul-monary capillary wedge pressure. The balloon is inflated from the inflation port. The most proxi-mal port is used to measure central venous pressure.
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