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(Created page with "==Pulmonary== *Alveolar-arterial O2 gradient, pATM at sea level 760 mmHg **PAO2 - paO2 **A-a O2 gradient = [FiO2 x (pATM - pH2O)] - (paCO2/0.8) - paO2 **=[FiO2 x (760 - 47)] -...") |
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**Normal for young adult non-smoker < 15 mmHg at sea level at RA | **Normal for young adult non-smoker < 15 mmHg at sea level at RA | ||
**Normal estimate by age < (age/4) + 4<ref>Nickson C. Lifeinthefastlane. A-a gradient. http://lifeinthefastlane.com/ccc/a-a-gradient/.</ref> | **Normal estimate by age < (age/4) + 4<ref>Nickson C. Lifeinthefastlane. A-a gradient. http://lifeinthefastlane.com/ccc/a-a-gradient/.</ref> | ||
==Sources== | |||
<references/> |
Revision as of 18:02, 16 February 2016
Pulmonary
- Alveolar-arterial O2 gradient, pATM at sea level 760 mmHg
- PAO2 - paO2
- A-a O2 gradient = [FiO2 x (pATM - pH2O)] - (paCO2/0.8) - paO2
- =[FiO2 x (760 - 47)] - (paCO2/0.8) - paO2
- Normal for young adult non-smoker < 15 mmHg at sea level at RA
- Normal estimate by age < (age/4) + 4[1]
Sources
- ↑ Nickson C. Lifeinthefastlane. A-a gradient. http://lifeinthefastlane.com/ccc/a-a-gradient/.