plasma
They're exactly the same number. "Hg" is the chemical symbol for mercury.
271.78 dont ask, it's right
Because a PaO2 level of 90 or 80 mm Hg is still a good level to be at, while both 50 and 40 mm Hg both indicate moderate hypoxemia. It's even more critical because at 50 mm Hg, the body is already...
The specific gravity of mercury is 13.5 (approx). So mass of 15mm of H2O = mass of 15/13.5 = 1.11... mm of mercury
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