Which of the following is NOT a symptom of hypoxia?

In the context of hypoxia, the symptoms experienced are typically related to the lack of oxygen reaching the body's tissues. Headache, euphoria, and anxiety are all recognized symptoms associated with hypoxia. As the body's oxygen levels drop, individuals may feel an intense headache, exhibit unusual levels of euphoria, or experience heightened anxiety as their body struggles to adapt to the reduced oxygen availability.

In contrast, increased coordination is not a symptom of hypoxia. In fact, hypoxia generally leads to decreased cognitive functions and motor performance, which means coordination tends to decline rather than improve. As the brain receives less oxygen, it can result in impaired judgment, slowed reaction times, and diminished physical coordination, making it challenging to perform tasks that require precise movements or mental clarity. Therefore, the assertion that increased coordination is associated with hypoxia is incorrect, as the physiological effects of inadequate oxygen typically result in a decline in these abilities.