Oxygenation

Oxygenation PB (local barometric pressure):
PaO2 (partial pressure of arterial O2):
PaCO2 (partial pressure of arterial CO2):
FIO2 (fractional concentration of inspired oxygen):
(0.21 when breathing room air)
PH2O (water vapor pressure):
(47 mmHg at 37° C)
R (respitory quotient):
(ratio of CO2 production to O2 consumption,
usually assumed to be 0.8)
Calculate oxygenation Clear Answer and Values Entered Above

References:

The Clinician's Ultimate Guide to Drug Therapy (www.globalrph.com) Harrison's Principles of Internal Medicine, 17e