eBook - ePub
Principles of Physiology for the Anaesthetist
Peter Kam, Ian Power
This is a test
Share book
- 511 pages
- English
- ePUB (mobile friendly)
- Available on iOS & Android
eBook - ePub
Principles of Physiology for the Anaesthetist
Peter Kam, Ian Power
Book details
Book preview
Table of contents
Citations
About This Book
This book provides readers with an anaesthesia-focused alternative to general physiology textbooks. The new edition has been reorganised with the trainee anaesthesist in mind, into shorter bite-sized chapters ideal for exam revision. The content includes the physiology of all major organ systems, with specific emphasis on the nervous, respiratory, and cardiovascular systems as well as special sections on pain, aging, specific environments and obesity. Alongside the learning objectives, reflection points and a handy summary of physiological equations and tables, there is greater emphasis on clinical application in this fourth edition, with applied physiology included in almost every section.
Frequently asked questions
How do I cancel my subscription?
Can/how do I download books?
At the moment all of our mobile-responsive ePub books are available to download via the app. Most of our PDFs are also available to download and we're working on making the final remaining ones downloadable now. Learn more here.
What is the difference between the pricing plans?
Both plans give you full access to the library and all of Perlego’s features. The only differences are the price and subscription period: With the annual plan you’ll save around 30% compared to 12 months on the monthly plan.
What is Perlego?
We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1 million books across 1000+ topics, we’ve got you covered! Learn more here.
Do you support text-to-speech?
Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more here.
Is Principles of Physiology for the Anaesthetist an online PDF/ePUB?
Yes, you can access Principles of Physiology for the Anaesthetist by Peter Kam, Ian Power in PDF and/or ePUB format, as well as other popular books in Medicina & Teoría, práctica y referencia médicas. We have over one million books available in our catalogue for you to explore.
Information
Section Sixteen
Special Environments
Chapter 77
Physiology Related to Special Environments
Physiology of Diving
Life under water exposes the diver to a major rise in ambient pressure of the environment, with physiological changes and problems from the direct effects of pressure on the body. In addition, the diver must be supplied with a mixture of gases to breathe at a pressure equal to ambient pressure, and this can also give rise to other problems.
Physical laws
As the SI unit for pressure (N/m2 [pascals]) is small, the ‘bar’ has been used for ambient pressures. One bar is equal to 105 N/m2, 750 mmHg and approximately 1 atmosphere (atm). However, in the diving industry, pressure is described in terms of depth in sea water, metres of sea water (msw). For every 10 m under sea water (density, 1.025), there is an increase in ambient pressure of about 1 bar. Thus, assuming that normal atmospheric pressure is 1 bar, at a depth of 50 msw the ambient pressure is 6 bar.
Three physical principles must be used to understand the physiological as well as the pathophysiological effects of life under water. Gases are compressible and follow Boyle’s law. During a breath-hold dive, as the volume of a gas is inversely related to its pressure for a given mass of gas at constant temperature, the volume of air in the lungs decreases with increasing depth and ambient pressure.
As the pressure of the gas increases, its density (mass per unit volume) increases. According to Dalton’s law, an increase in the total gas pressure is ...