Which of the following is a symptom of hypoxia?

Hypoxia occurs when there is a deficiency of oxygen reaching the tissues of the body, which can significantly impair cognitive and physical functions. One of the notable symptoms of hypoxia is loss of judgment. This occurs because the brain is sensitive to low oxygen levels, leading to impaired decision-making, reduced situational awareness, and difficulty in thinking clearly. Individuals experiencing hypoxia may not be able to assess situations accurately or respond appropriately because the brain does not have sufficient oxygen to function optimally.

In contrast, the other options involve states of heightened performance or capability that are contrary to the effects of hypoxia. Increased energy, heightened concentration, and improved muscle control suggest an enhanced state of functioning, which is not what happens in situations of oxygen deficiency. Instead, hypoxia typically leads to fatigue, confusion, and impaired motor skills. Understanding the symptoms of hypoxia is crucial for individuals working in environments where they may be exposed to low oxygen conditions, as recognizing these symptoms can be vital for ensuring safety and well-being.