In which type of hypoxia does administration of O2 would have maximum benefit ?: (A) Stagnant hypoxia, (B) Hypoxic hypoxia, (C) Histotoxic hypoxia, (D) Anemic hypoxia
Answer is B. Hypoxic hypoxia Low atmospheric Po2 leads to low aerial Po2. Hence,supplemental O2 can be helpful. Administration of oxygen-rich gas has limited value in anemic, histotoxic, and stagnant hypoxia because supplemental O2 can only increase the amount of dissolved O2 in the aerial blood as the O2-carrying capacity of the blood is otherwise normal in these conditions.