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Medical Calculators

Oxygenation Index
 

Calculate the oxygenation index given FiO2, mean airway pressure and PaO2

Input FiO2 (%)
Input Mean Airway Pressure (cmH2O)
Input PaO2 (torr)
   
   
Oxygen Index =

The equation is:

OI =
FiO2 * MAP
PaO2


  • Ortiz RM, Cilley RE, Bartlett RH. Extracorporeal membrane oxygenation in pediatric respiratory failure. Pediatr Clin North Am. 1987 Feb;34(1):39-46.

Special thanks to Mathias Tschopp, Creator of MedCalc for the Palm OS.

Created: January 7, 2000. Revised: January 31, 2001
© 1998-2001 Steven Pon, MD, Weill Medical College of Cornell University. All rights reserved.