# Effect of Altitude on Alveolar Oxygen Pressure

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This Demonstration shows the effects of changes in altitude on alveolar oxygen pressure using the alveolar gas equation: , where is the alveolar partial pressure in mmHg, is the fraction of inspired oxygen, and is the vapor pressure of water at 37 °C, 47 mmHg.

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Contributed by: Natalie Gurevich and Kaitlyn Kuder (December 2017)

Additional contributions by: Eitan Geva (University of Michigan)

Open content licensed under CC BY-NC-SA

## Details

References

[1] University of Colorado. "Rules on Oxygen Therapy." (Dec 4, 2017) www.ucdenver.edu/academics/colleges/medicalschool/departments/medicine/intmed/imrp/CURRICULUM/Documents/Oxygenation%20 and %20 oxygen %20 therapy.pdf.

[2] D. Curran-Everett, "A Classic Learning Opportunity from Fenn, Rahn, and Otis (1946): The Alveolar Gas Equation," *Advances in Physiology Education*, 30(2), 2006 pp. 58–62. doi:10.1152/advan.00076.2005.

[3] J. Conkin, "Equivalent Air Altitude and the Alveolar Gas Equation," *Aerospace Medicine and Human Performance*, 87(1), 2016 pp. 61–64. doi:10.3357/AMHP.4421.2016.

[4] S. Martin and B. Maury, "Modeling of the Oxygen Transfer in the Respiratory Process," *ESAIM: Mathematical Modelling and Numerical Analysis*, 47(4), 2013 pp. 935–960. doi:10.1051/m2an/2012052.

Submission from the Compute-to-Learn course at the University of Michigan.

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