Hypoxia: Difference between revisions
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*Normal PAO2 = 760 - 47 x 0.21 - 40/0.8 | *Normal PAO2 = 760 - 47 x 0.21 - 40/0.8 | ||
*Normal PAO2= 100 | *Normal PAO2 = 100 | ||
==DDX== | ==DDX== | ||
Revision as of 23:00, 9 June 2011
Background
PAO2 = (PB - PH2O) x FiO2 - PaCO2/RQ
- Normal PAO2 = 760 - 47 x 0.21 - 40/0.8
- Normal PAO2 = 100
DDX
- V/Q mismatch
- Diffusion
- Hypercarbia
- Altitude
- Cardiac Shunt