![]() ![]() However, in subjects who are hyperventilating, venturi devices may fail to deliver sufficient gas flow and the 60% O 2 venturis are recognised as performing poorly. ![]() Unfortunately, modes of ventilation were a disappointing section, which perhaps was not strictly relevant to this text, although the physics of flow in, for example, high-frequency oscillation might be more in keeping with the ethos of the book. This is followed by breathing systems including the Mapleson classification and CO 2 removal. The book deals with measuring gases and vapours, including the Clark, Sanz, and Severinghaus electrodes, then goes on to delivering vapours via vaporizers, summarizing the principles involved, medical gas supplies including cylinder design, and the behaviour of gases that liquefy in a cylinder. Osmosis and areas regarding, isotonic, hypertonic, and hypotonic solutions could have usefully been expanded or better defined. The properties of gases and the related gas laws are summarized. Humidity, flows, and their measurement are well dealt with, together with the effects we see in different systems such as Venturi and Coanda. The chapter goes on to describe the applications of pressure to valves and measuring devices in anaesthesia and usefully the implications of siphon effects. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |