Which of the following is a symptom of extreme hypoxia?

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Multiple Choice

Which of the following is a symptom of extreme hypoxia?

Explanation:
Extreme hypoxia hits the brain hardest. When oxygen levels plummet, brain cells become highly irritable and can start firing abnormally, which can trigger convulsions. This sudden, uncontrolled muscle activity signals that oxygen deprivation has reached a dangerous, life‑threatening level and requires immediate action to restore oxygen delivery. The other symptoms—headache, dizziness, and nausea—can occur with less severe hypoxia and reflect general brain or vestibular responses, but they don’t specifically indicate the extreme, dangerous level that convulsions do.

Extreme hypoxia hits the brain hardest. When oxygen levels plummet, brain cells become highly irritable and can start firing abnormally, which can trigger convulsions. This sudden, uncontrolled muscle activity signals that oxygen deprivation has reached a dangerous, life‑threatening level and requires immediate action to restore oxygen delivery. The other symptoms—headache, dizziness, and nausea—can occur with less severe hypoxia and reflect general brain or vestibular responses, but they don’t specifically indicate the extreme, dangerous level that convulsions do.

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