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Which of the following is NOT a symptom of carbon monoxide poisoning?

  1. Excessive thirst

  2. Irritated eyes

  3. Headache

  4. Weakness or dizziness

The correct answer is: Excessive thirst

Carbon monoxide poisoning is a result of inhaling too much carbon monoxide, which is a gas that has no smell or color. It can cause a variety of symptoms such as headache, dizziness, weakness, nausea, and vomiting. Excessive thirst is not a common symptom of carbon monoxide poisoning. It is important to note that irritated eyes can also be a symptom of carbon monoxide poisoning, but it is not always present. The most common and dangerous symptoms of carbon monoxide poisoning are headaches, dizziness, and weakness, so these should be taken seriously and treated immediately. So, option A is incorrect as it is not a typical symptom of carbon monoxide poisoning.