Why is it necessary to keep the patient's PaO₂ greater than 60 mm Hg?

Question

Quizplus · Accepted Answer

With a PO₂ lower than 60 mm Hg, the curve steepens dramatically. Here, in the normal operating range of the tissues, even a small drop in PO₂ causes a large drop in SaO₂, indicating a decreasing affinity for O₂. This normal decrease in the affinity of hemoglobin for O₂ helps release large amounts of O₂ to the tissue, where the PO₂ is low. This also explains why it is necessary to keep the PaO₂ higher than 60 mm Hg in clinical practice.

Why Is It Necessary to Keep the Patient's PaO2 Greater

Why Is It Necessary to Keep the Patient's PaO₂ Greater