An instrument for measuring the volume of air entering and leaving the lungs.
spirometric spi'ro·met'ric (-rə-mĕt'rĭk) adj.spirometry spi·rom'e·try n.
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spirometry spi·rom'e·try n.
Food and Nutrition:
spirometer
Or respirometer, apparatus used to measure the amount of oxygen consumed (and in some instances carbon dioxide produced) from which to calculate the energy expended (indirect calorimetry).
Sports Science and Medicine:
spirometer
A device for measuring the volume of gases inspired into and expired from the lungs during ventilation.
Veterinary Dictionary:
spirometry
Measurement of the breathing capacity by means of a spirometer.
Wikipedia:
spirometer
A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. It is a precision differential pressure transducer for the measurements of respiration flow rates. The spirometer records the amount of air and the rate of air that is breathed in and out over a specified time. The Spirometer and attached flow head function together as a pneumotachometer, with an output signal proportional to airflow. It was invented by John Hutchinson in 1846.
The output produced by a spirometer is called a kymograph trace. From this, vital capacity, tidal volume, breathing rate and ventilation rate (=tidal volume x breathing rate) can be calculated. From the overall decline on the graph, the oxygen uptake can also be measured.
History
Some early work (1859) using a spirometer was done by Edward Smith in London.
See also
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Food and Nutrition. A Dictionary of Food and Nutrition. Copyright © 1995, 2003, 2005 by A. E. Bender and D. A. Bender. All rights reserved. Read more |
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| Sports Science and Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Spirometer". Read more |
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