Final answer:
A rebreathing circuit with an intubated patient conserves patient body heat through rebreathed air.
Step-by-step explanation:
A rebreathing circuit is a type of breathing circuit used in anesthesia to conserve heat and moisture in the patient. It involves the recirculation of exhaled gas, which helps to maintain a warm and humid environment for the patient. This is especially important for intubated patients who are at risk of losing body heat through the ventilated air.
The question pertains to a rebreathing circuit used with an intubated patient. Among the provided statements, the one that is true is: B. Conserves patient body heat through rebreathed air. This is because a rebreathing circuit recycles exhaled gases after removing carbon dioxide and adding fresh inhalational anesthetic gases, thus retaining the warmth and humidity of exhaled breath.
Option B is correct: A rebreathing circuit conserves patient body heat through rebreathed air.