PaO2, SpO2, and end-tidal CO2 |Dr. Jane Quandt

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PaO2, SpO2, and end-tidal CO2, oh my!! Dr. Jane Quandt, DACVA, DACVECC explains all you need to know about these confusing abbreviations! Why should you care? Because it lets you assess your oxygenation and ventilation! Find out why you need to care (a lot!) when your pulse oximetry reading (SpO2) is only 90%!

PaO2: partial pressure of dissolved arterial oxygen; 80-100 mm Hg
PaCO2: partial pressure of dissolved arterial carbon dioxide
SpO2: oxygen saturation
eTCO2: end-tidal CO2 (assesses ventilation and exhaled CO2)

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