What are common symptoms of carbon monoxide exposure?

Common symptoms of carbon monoxide exposure primarily include headache, dizziness, and weakness. These symptoms arise because carbon monoxide is a colorless, odorless gas that impairs the blood's ability to carry oxygen. When inhaled, it binds with hemoglobin in red blood cells more effectively than oxygen, leading to reduced oxygen supply to vital organs and tissues. As a result, individuals exposed to carbon monoxide may experience a range of symptoms associated with hypoxia, which is a deficiency in the amount of oxygen reaching the tissues.

The presence of headache can indicate increased intracranial pressure or reduced cerebral blood flow due to oxygen deprivation, while dizziness and weakness are signs that the body is not receiving enough oxygen to function properly. These symptoms can escalate in severity as exposure continues, potentially leading to confusion, loss of consciousness, and even death if not promptly addressed.

Other options, while they may represent symptoms associated with different conditions or exposures, do not align with the typical profile of carbon monoxide poisoning. Itching, swelling, and rash are generally more indicative of allergic reactions or skin conditions. Fatigue, insomnia, and anxiety can be related to various health issues but do not specifically signal carbon monoxide exposure. Likewise, nausea, vomiting, and constipation often relate to gastrointestinal disturbances rather