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Kaplan Qbank USMLE



Author4 Posts
  #1

OXYgen TEnsion...is it similar to oxygen saturation?

can anyone explain it ...i know it might be something very stupid to ask but i am confused


  #2

o2 tension---is the total o2 in the body ( pao2,,in tissues ....)

oxygen saturation----oxygen bound to haemoglobin. example...CO competes fr hb on binding sites and decrease saturation of oxygen.

anyone else..........


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  #3

o2 tension is the dissolved O2(Po2) in blood .O2 sat is the o2 attached to Hb

  #4

sorry...I was obviously wrong on this...grin

I just remembered this relationship from Goljan

O2 content= 1.34* Hb * O2 saturation + PaO2

Thanks guys!


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