Anesthesia Technologist Practice Exam

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At what mark should the balloon on the PAC be inflated?

10 cm
15 cm
20 cm
25 cm

The correct answer is: 20 cm

In the context of pulmonary artery catheters (PAC), the balloon should be inflated at the mark that corresponds to the correct placement of the catheter within the heart and pulmonary arteries. The typical inflation mark is around 20 cm from the fluoroscopic marker for the right atrial or right ventricular position. This distance ensures that the catheter is placed properly while minimizing the risk of complications such as balloon rupture or incorrect positioning. Selecting the 20 cm mark aligns with established best practices in clinical settings, allowing healthcare professionals to accurately assess cardiac function and hemodynamics through the measurements taken from the PAC.