Carbon monoxide blood agents exposure

Carbon monoxide blood agents do not have good warning properties. Carbon monoxide is odorless and colorless. Although exposure to metal carbonyl vapors can cause eye irritation,... 

A casualty with known exposure to carbon monoxide blood agents, who was initially unconscious but has regained consciousness or a casualty who shows neurological abnormalities such as dizziness, confusion, or hallucinations, has cardiac arrhythmias, bronchospasm or complains of severe headache, difficulty in breathing or chest pain. If available, breath measurement indicates that the blood carbon monoxide level exceeds 20%. 

A casualty with known exposure to carbon monoxide blood agents and in cardiac arrest. 

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