Which volatile anesthetics can be used interchangeably with accurate delivery to the concentration set on the dial?

Sevoflurane and Enflurane are volatile anesthetics that can be used interchangeably due to their pharmacological profiles and delivery mechanisms. Both agents are halogenated ethers that exhibit similar properties in terms of volatility and concentration control through standard vapor delivery systems. This means that when an anesthetic machine is calibrated, the dial settings for these agents are accurately reflective of the concentration delivered to the patient.

Sevoflurane is known for its rapid induction and emergence characteristics, making it a popular choice in various surgical settings, while Enflurane offers reliable anesthetic depth and is also an effective agent. The ability to use these two agents interchangeably is significant for anesthesiologists as it allows flexibility in anesthetic management while ensuring patient safety and effective anesthesia administration.

In contrast, the other pairs of agents listed do not share this interchangeable attribute as closely based on their physical and chemical properties, including volatility and vapor pressure. Thus, Sevoflurane and Enflurane stand out as the correct choice for this question.