student asking question

What's "end-tidal CO2"?

teacher

Native speaker’s answer

Rebecca

"End-tidal CO2" is a medical term that shows how much carbon dioxide (CO2) is being exhaled. It's important because it shows how much carbon dioxide the blood is bringing to the lungs to be removed from the body by exhaling. Tom is monitoring this boy's end-tidal CO2 levels to determine how the child is breathing.

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