This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Decreased Q2 carrying capacity and Normal PO2 is a feature of : \nSelect and explain. \nA. Anemic hypoxia, B. Histotoxic hypoxia, C. Stagnant hypoxia, D. Hypoxic hypoxia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Subnormal level of hemoglobin causes decreased oxygen – carrying capacity of the blood. This in turn initiates compensatory physiologic adaptations such as :\no Increased release of oxygen from hemoglobin. o Increased blood flow to the tissues.\no Maintenance of the blood volume ; and\no Redistribution of blood flow to maintain the cerebral blood supply.\no Eventually, however, tissue hypoxia develops causing impaired functions of the affected tissues.', 'role': 'assistant'}]