After cessation of general anesthesia, which item acts as a reservoir delaying emergence?

After cessation of general anesthesia, which item acts as a reservoir delaying emergence?

• A. Rebreathed exhaled gases
• B. The absorbent
• C. The patient
• D. Gases emerging from the common gas outlet

Answer: (D)

Emergence is slowed when anesthetic vapor remains stored in the breathing circuit and is still available for inhalation as you breathe out and then back in. The common gas outlet is the path where that residual gas leaves the machine and enters the scavenging system or can be re-inspired if flushing isn’t complete. Because this outlet carries the leftover anesthetic vapors, it effectively acts as a reservoir that delays awakening. Other elements don’t serve as that reservoir in the same way. The absorbent removes anesthetic from gas in the circuit rather than storing it. Rebreathed exhaled gases are part of the rebreathing cycle but the specific source that sustains elevated anesthetic levels after stopping the agent is the gas emerging from the common gas outlet. The patient themselves isn’t a reservoir; they’re the organism awakening from the anesthetic.

Emergence is slowed when anesthetic vapor remains stored in the breathing circuit and is still available for inhalation as you breathe out and then back in. The common gas outlet is the path where that residual gas leaves the machine and enters the scavenging system or can be re-inspired if flushing isn’t complete. Because this outlet carries the leftover anesthetic vapors, it effectively acts as a reservoir that delays awakening.

Other elements don’t serve as that reservoir in the same way. The absorbent removes anesthetic from gas in the circuit rather than storing it. Rebreathed exhaled gases are part of the rebreathing cycle but the specific source that sustains elevated anesthetic levels after stopping the agent is the gas emerging from the common gas outlet. The patient themselves isn’t a reservoir; they’re the organism awakening from the anesthetic.