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I also found this mm Hg - this stands for millimeters of Mercury. Standard pressure is 761.84 mm Hg. not sure if that helps. |
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I don't want to confuse you.. I know it confuses me LOL </IMG> |
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Ok I got a hold of my sister and she asked her friend who is an EMT and he said it is millimeters of mercury |
That doesnt make sense right now but I have to move on:confused: Back to the book:D Thank you for all your help!!! You always help me so much:D:D |
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Millimeters of mercury is the way we measure pressure - anywhere in the body where pressure can be measured. This is the way blood pressure is measured, in mm of Hg. Have you ever seen the old timey blood pressure machines that hang on the wall and have the silver liquid (mercury) that rises up when you pump up the cuff and then lowers as you let out the cuff pressure? We don't say 120/80 mm Hg, but that is what it is. Anyway, the number that you cited in your first post is the partial pressure or tension of CO2 (the amount of carbon dioxide gas dissolved in the blood). No, there is no mercury in the lungs. I'm not sure in what context you are reading about PCO2, but anyway, that is what it means. |
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i had to go last night before you answered what it was in reference too. But this post explains it all. :) |
gosh we were just studying this in chem and i cant even answer it lol doesn't it have something to do with torr? |
YES! Torr is is another word for mmHg and both terms are used to represent a unit of pressure measurement. Torr or mmHg is the atmospheric pressure that supports a column of mercury 1 millimeter high. |
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