What is a common symptom of carbon monoxide poisoning?

• A. Severe headache
• B. Diarrhea
• C. Sore throat
• D. Nausea

Answer: (A)

Severe headache is a common symptom of carbon monoxide poisoning due to the way carbon monoxide affects the body. This gas binds to hemoglobin in the blood more effectively than oxygen, which reduces the ability of blood to transport oxygen throughout the body. The brain, being highly sensitive to oxygen levels, can react to this deficiency, leading to symptoms like headache, dizziness, confusion, and in more severe cases, loss of consciousness or even death.

In the context of other symptoms associated with carbon monoxide poisoning, nausea can also occur but is less characteristic than a headache. Diarrhea is not typically linked to carbon monoxide exposure, and a sore throat does not distinctly represent the effects of carbon monoxide in the same manner that a headache does. Understanding the common presentations of this type of poisoning is crucial for early recognition and timely intervention.