Physiology After hyperventilating for sometime, holding the breath is dangerous, since: A It can lead to CO2 necrosis B Due to lack of stimulation by CO2 anoxia can go into dangerous levels C Decreased CO2 shift the oxygen dissociation curve to the left D Alkalosis can lead to tetany 💡 Explanation After hyperventilating for sometime, holding the breath is dangerous, since: ✓ Correct Answer: D. Alkalosis can lead to tetany