What is a symptom of carbon monoxide exposure according to the material?

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Multiple Choice

What is a symptom of carbon monoxide exposure according to the material?

Explanation:
Carbon monoxide exposure typically produces headaches, often described as tightness across the forehead. This happens because CO binds to hemoglobin, reducing the blood’s ability to carry oxygen to the brain and other tissues, which can trigger a band-like headache and other CNS symptoms. The other options—numb fingers, stomach cramps, and rash—are not common early signs of CO poisoning, so the forehead-tightening headache best fits CO exposure. If CO exposure is suspected, move to fresh air immediately and seek medical evaluation, and use CO detectors to prevent future incidents.

Carbon monoxide exposure typically produces headaches, often described as tightness across the forehead. This happens because CO binds to hemoglobin, reducing the blood’s ability to carry oxygen to the brain and other tissues, which can trigger a band-like headache and other CNS symptoms. The other options—numb fingers, stomach cramps, and rash—are not common early signs of CO poisoning, so the forehead-tightening headache best fits CO exposure. If CO exposure is suspected, move to fresh air immediately and seek medical evaluation, and use CO detectors to prevent future incidents.

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