Which factor is NOT a cause of hypemic hypoxia?

Hypemic hypoxia occurs when there is a reduced oxygen-carrying capacity of the blood, leading to inadequate oxygen delivery to tissues despite normal or increased oxygen levels in the environment. Key factors that cause hypemic hypoxia include conditions affecting hemoglobin or its ability to transport oxygen.

Anemia is a primary cause of hypemic hypoxia because it involves a decrease in red blood cell count or hemoglobin concentration, leading to less oxygen being transported in the bloodstream. Hemorrhage, which involves the loss of blood, similarly reduces the available hemoglobin for oxygen transport, contributing to hypemic hypoxia. Carbon monoxide poisoning is also a significant cause, as carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, effectively reducing the oxygen-carrying capacity and leading to tissue hypoxia.

In contrast, high G forces primarily affect blood flow dynamics rather than the oxygen-carrying capacity of hemoglobin. While exposure to extreme G forces can lead to other forms of hypoxia (such as due to reduced perfusion), it does not inherently result in hypemic hypoxia, as it does not change the amount of hemoglobin or its ability to carry oxygen in the blood. Therefore, high G forces are not considered a cause of hypemic hyp