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Home Q & A Board Biology-Related Homework Help Cell Biology
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arichman7730 arichman7730
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6 years ago
A client who is in a room at 1 atmosphere (760 mm Hg) is receiving supplemental oxygen therapy that is being delivered at a concentration of 50. What is the consequent PO2?
 
  A) 38,000 mm Hg.
  B) More data are needed.
  C) 380 mm Hg.
  D) 15.2 mm Hg.
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#1
6 years ago
Ans: C
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The law of partial pressures states that the total pressure of a mixture of gases, as in the atmosphere, is equal to the sum of the partial pressures of the different gases in the mixture. If the concentration of oxygen at 760 mm Hg (1 atmosphere) is 50, its partial pressure is 380 mm Hg (760  0.50).
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