imsoconfused

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1. Can someone please explain the difference PO2 and PaO2?

   imsoconfused posted a topic in Student Assist

   Hi all, I can't understand what is the difference between PO2 and Pa02. I know that PaO2 is the partial pressure of oxygen in blood. PO2 is partial pressure of Oxygen. Are they interchangeable? For example in many textbooks (...