A person with normal lungs at sea level $( 760 \mathrm {~mm} \mathrm { Hg } )$ is breathing $50 \%$ oxygen. What is the approximate alveolar $\mathrm { pO } _ { 2 }$ ?
A. 100
B. 159
C. 310
D. 330
E. 380

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The Answer of A person with normal lungs at sea level $( 760 \mathrm {~mm} \mathrm { Hg } )$ is breathing $50 \%$ oxygen. What is the approximate alveolar $\mathrm { pO } _ { 2 }$ ?
A. 100
B. 159
C. 310
D. 330
E. 380

A Person with Normal Lungs at Sea Level (760 mmHg)( 760 \mathrm {~mm} \mathrm { Hg } )(760 mmHg)

A Person with Normal Lungs at Sea Level $( 760 \mathrm {~mm} \mathrm { Hg } )$