Fig. 3
From: Biological effects of the oxygen molecule in critically ill patients
Effect of the blood flow and rate of oxygen consumption on tissue PO2. An increase in blood flow to 400% from point A to B increases the tissue PO2 from 40 to 66 mmHg, limited to 95 mmHg, just as with the arterial PO2, even with maximal blood flow. Conversely, if the blood flow decreases from point A to C, the tissue PO2 also decreases. (Reuse from Guyton and Hall Textbook of Medical Physiology 14th ed. with permission from Elsevier B.V.)