prognosis.org | arterial blood gas calculator

       
      Enter values, then press "tab":      
           
       
  FIO2 %      
  PaO2    
     
  PaCO2    
     
       
           
       
     
         
   
         
       
             
      Derived values Normal ranges      
      Written by Kenneth Baillie.  
      This ABG interpreter is intended as a teaching aid and is not a substitute for clinical judgement!  
     

To learn how to interpret blood gases, I recommend Arterial Blood Gases Made Easy by I Hennessey and A Japp.
[Disclosure - the authors are friends of mine and I helped a little with the book.]

The rules implemented in this interpreter can be found here: Baillie JK. Simple, easily memorised "rules of thumb" for the rapid assessment of physiological compensation for acid-base disorders. Thorax 63 (3): 289 - 90.

If you have any queries or suggestions, please email abg@prognosis.org