Carbon Monoxide

Sources

Generated by combustion - fires,  wood heaters, car exhaust

Mechanism of action

Symptoms

Acute

Severity Symptoms
Mild Headache, Dyspnea, Nausea
Moderate Vomiting, Altered mental state, Weakness, Visual disturbance, Syncope
Severe Seizures, Coma, Arrhythmias

Chronic 

May only have mild symptoms

Complications

Acute

Chronic

Investigations

Treatment

100% Oxygen (non-breather with tight fitting mask)

HBO therapy (controversial - discuss with local hyperbaric unit)

Indications

Special situations (lower threshold for treatment)