Carbon monoxide poisoning typically occurs from breathing in carbon monoxide (CO) at excessive levels.[3] Symptoms are often described as "flu-like" and commonly include headache, dizziness, weakness, vomiting, chest pain, and confusion.[1] Large exposures can result in loss of consciousness, arrhythmias, seizures, or death.[1][2] The classically described "cherry red skin" rarely occurs.[2] Long-