$\mathrm { P } _ { \mathrm { O } _ { 2 } }$ in the blood is
A)the pressure exerted by the amount of oxygen dissolved in the blood
B)the most important factor determining the percent saturation of hemoglobin
C)normal in carbon monoxide poisoning
D)only a and b
E)a, b, and c

Question

Quizplus · Accepted Answer

$\mathrm { P } _ { \mathrm { O } _ { 2 } }$ refers to the partial pressure of oxygen dissolved in the blood, which influences hemoglobin saturation. In carbon monoxide poisoning, $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ remains normal because CO binds to hemoglobin, not affecting dissolved oxygen levels.

PO2\mathrm { P } _ { \mathrm { O } _ { 2 } }PO2​​

$\mathrm { P } _ { \mathrm { O } _ { 2 } }$