A PaO2 test measures partial pressure of oxygen, or PaO2—the oxygen pressure in arterial blood. The PaO2 reflects how well oxygen is able to move from the lungs to the blood. It is often altered by ...

Partly cloudy. Slight chance of a shower in the far west, becoming less likely later this evening. Near zero chance of rain elsewhere. Winds southwesterly 20 to 30 km/h decreasing to 15 to 20 km/h in ...