A sevoflurane vaporizer can accurately deliver the dose of an anesthetic agent. It resembles it in which of the following propeies?
(A) Molecular weight (B) Oil gas paition coefficient (C) Blood gas paition coefficient (D) Vapor pressure
(D) Ans: D. Vapor pressureVapor pressure is directly propoional to temperature.Increasing temperature will increase the ratio of gas:liquid molecules, thereby increasing vapor pressure.Vapor pressure is independent of atmospheric pressure and is contingent only on the temperature and physical characteristics of the liquid.