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Spirometry - Introduction |
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A great deal can be learned about the mechanical properties of the lungs from measurements of forced maximal expiration and inspiration. Since Hutchinson first developed the spirometer in 1846, measurements of the so-called dynamic lung volumes and of maximal flow rates have been used in the detection and quantification of diseases affecting the respiratory system. Over the years it has become obvious that the spirometer and peak flow meter used to measure ventilatory function are as deserving of a place in the family practitioner's surgery as the sphygmomanometer. After all, who would dream of managing hypertension without measurement of blood pressure?
It is important to appreciate that the clinical value of spirometric measurements is critically dependent on the correct operation and accuracy of the spirometer, performance of the correct breathing manoeuvre and use of relevant predicted normal values.
Staff performing spirometry should first attend a comprehensive training course. This is important because inadequate training will result in poor quality spirometry that is of little clinical value.
This handbook was written as a guide for those involved in the performance and interpretation of spirometry in clinical practice, i.e. medical practitioners and assisting nursing staff, and as an introduction to the topic for scientists and technicians. It is not intended to be an exhaustive review but rather a guide aiming to help improve the knowledge and techniques of those already doing and interpreting spirometry, and to introduce spirometry to those learning how to do it for the first time. The important facts about types of spirometers, how the test is actually performed and interpreted, and some common pitfalls and problems are covered in the main text.
Those seeking more detailed information, including case histories, are referred to our other publications:
- Johns DP, Pierce R. Pocket Guide to Spirometry, 2nd edition. Sydney: McGraw-Hill Australia, 2007.
- Burton D, Johns DP, Swanney M. Spirometer Users’ and Buyers’ Guide. Melbourne: Department of Health and Ageing, 2005.
- Johns DP, Pierce R. How to Perform and Interpret Spirometry [CD ROM]. Melbourne: Medi+World International, 2004.
Content Updated 28 March, 2008
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Last Updated ( Tuesday, 17 February 2009 )
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