Final answer:
The value that must be continuously watched when transporting a patient with a PA Line is CVP (Central Venous Pressure).
Step-by-step explanation:
The value that must be continuously watched during the trip when transporting a patient with a PA Line is C) CVP (Central Venous Pressure).
CVP is a measurement of the blood pressure in the central veins, which are the veins located close to the heart. It reflects the amount of blood returning to the heart and the ability of the heart to pump blood effectively.
Monitoring CVP is important in assessing the patient's fluid status, cardiac function, and response to treatment. Abnormal CVP levels can indicate conditions such as fluid overload, hypovolemia, heart failure, or obstruction in the venous system.