Pulmonary compliance
From Wikipedia, the free encyclopedia
Compliance of the lungs is an important measurement in respiratory physiology.[1][2][3]
- 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.
[edit] Calculation
Compliance is calculated using the following equation, where ΔV is the change in volume, and ΔP is the change in pressure:[4]
[edit] References
- ^ http://oac.med.jhmi.edu/res_phys/Encyclopedia/Compliance/Compliance.HTML
- ^ Nikischin W, Gerhardt T, Everett R, Bancalari E (1998). "A new method to analyze lung compliance when pressure-volume relationship is nonlinear.". Am J Respir Crit Care Med 158 (4): 1052-60. PMID 9769260. article
- ^ Physiology at MCG 4/4ch2/s4ch2_21
- ^ http://www.cvphysiology.com/Blood%20Pressure/BP004.htm
[edit] External links
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