64. EFFECT OF TEMPERATURE CHANGE ON BLOOD CO2 AND O2 PRESSURES: MAN, DOG 



These line charts illustrate the effect of changes in temperature on CO2 and O^ tensions in human or dog blood 

 sealed in an anaerobic environment. The values are applicable to either in vitro or in vivo conditions. Error 

 increases progressively as pH and temperature deviate from standard values of 7.4 and 37°C respectively. 



AT = temperature change in °C. 



CO, 



O2 



AT 



P cool 



P warm 

 — 1— 1.00 



.99 



AT 



P cool 



0.5 



2 — 



6 — I 



7 



8 



9 

 10 

 11 



12 



.98 



.97 

 .96 

 — .95 

 .94 

 .93 

 .92 



.91 

 .90 

 .89 

 .88 

 .87 

 .86 

 .85 



.80 



— .75 



- — .70 



.65 



.60 



P warm 



— M— 1.00 



_ - .99 



0.5 — 





7 



8 



9 

 10 

 1 1 

 12 

 13 



.98 

 .97 



.96 

 .95 

 .94 

 .93 

 .92 

 .91 

 .90 



.85 



— .80 



.75 



.70 



.65 



.60 



— .55 



.50 



Contributor : Severinghaus, J. W. 



62 



