Physiology An increase in the concentration of 2 – 3 Biphosphoglycerate (2,3 DPG) may be seen in all of the following except A Anemia B Hypoxia C Inosine D Hypoxanthine 💡 Explanation An increase in the concentration of 2 - 3 Biphosphoglycerate (2,3 DPG) may be seen in all of the following except ✓ Correct Answer: D. Hypoxanthine