Which of the following are normal values for hemoglobin saturations and oxygen partial pressures?
I.Arterial oxygen saturation (SaO₂) is approximately 97.5%.
II.PO₂ is 100 mm Hg at SaO₂ of 97.5%.
III.Mixed venous oxygen saturation (S $\bar{V}$ O₂) is normally 75%.
IV. P $\bar{V}$ O₂ is 60 mm Hg at S $\bar{V}$ O₂ of 75%.

Question

Which of the following are normal values for hemoglobin saturations and oxygen partial pressures?
I.Arterial oxygen saturation (SaO₂) is approximately 97.5%.
II.PO₂ is 100 mm Hg at SaO₂ of 97.5%.
III.Mixed venous oxygen saturation (S

\bar{V}

O₂) is normally 75%.
IV. P

\bar{V}

O₂ is 60 mm Hg at S

\bar{V}

O₂ of 75%.

Quizplus · Accepted Answer

Arterial oxygen saturation (SaO₂) is approximately 97.5% at a normal arterial PO₂ of 100 mm Hg. Only 75% of the hemoglobin molecules in mixed venous blood are oxygenated. Mixed venous oxygen saturation (S $ \bar{V} $1 O₂) is therefore normally 75%, which corresponds to a P$ \bar{V} $O₂ of approximately 40 mm Hg.

Which of the Following Are Normal Values for Hemoglobin Saturations Vˉ \bar{V} Vˉ

Which of the Following Are Normal Values for Hemoglobin Saturations $\bar{V}$