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A nurse measures the blood pressure of a seated patient to be $190 \mathrm{~mm}$ of $\mathrm{Hg}$ -
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The correct answer is:
The actual pressure is about $1.25$ times the atmospheric pressure
Blood pressure is gauge pressure $=190 \mathrm{~mm} \mathrm{Hg}$
Atmospheric pressure $=760 \mathrm{~mm} \mathrm{Hg}$
Actual pressure $=190+760 \mathrm{~mm} \mathrm{Hg}=950 \mathrm{~mm} \mathrm{Hg}=1.25 \times 760 \mathrm{~mm} \mathrm{Hg}$
Atmospheric pressure $=760 \mathrm{~mm} \mathrm{Hg}$
Actual pressure $=190+760 \mathrm{~mm} \mathrm{Hg}=950 \mathrm{~mm} \mathrm{Hg}=1.25 \times 760 \mathrm{~mm} \mathrm{Hg}$
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