Trace Concentrations of Anesthetic Gases Concern over trace concentrations of anesthetic gases dates back to 1967, when Vaĭsman reported findings of a survey of 354 anesthesiologists in Russia. All worked in poorly ventilated operating rooms (ORs) and used nitrous oxide…
General Principles The term vapor describes the gaseous phase of a substance at a temperature at which the same substance can also exist in a liquid (or solid) state, below the critical temperature of that substance. Critical temperature is defined…
Anesthesia Gas Delivery System The Anesthesia Machine as a Component of an Anesthesia Workstation The modern anesthesia gas delivery system is composed of the anesthesia machine (see the following section), anesthesia vaporizer(s) (see Chapter 3 ), breathing system (see Chapter…