Pulmonary compliance
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Overview
Compliance is the ability of the lungs to stretch in a change in volume relative to an applied change in pressure. It is an important measurement in respiratory physiology.[1][1][1]
- fibrosis is associated with a decrease in pulmonary compliance.
- emphysema/COPD are associated with an increase in pulmonary compliance.
Pulmonary surfactant increases compliance.
Compliance is greatest at moderate lung volumes, and much lower at volumes which are very low or very high.
Calculation
Compliance is calculated using the following equation, where ΔV is the change in volume, and ΔP is the change in pressure:[1]
References
External links
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
