Verywell Health on MSN3mon
CO2 Blood Test to Check Carbon Dioxide Levels
Carbon dioxide (CO2) blood tests evaluate the presence of the gas in your blood. If your CO2 levels rise too high or fall too ...
Hosted on MSN24y
Partial Pressure of Oxygen (PaO2) Test
Medically reviewed by Reza Samad, MD A PaO2 test measures partial pressure of oxygen, or PaO2—the oxygen pressure in arterial ...