ABSTRACT
Carbon monoxide (CO) is odorless, colorless, tasteless, and nonirritating. As such, CO has no warning properties that can alert unwary individuals to its presence. When people become ill owing to CO toxicity, the symptom complex can be nonspecific and variable making the diagnosis of CO poisoning difficult. Given its lack of warning signs and lack of distinct clinical features, CO has been labeled by some as a “silent killer.”
