Exhaled Carbon Monoxide Concentration Greater than or Equal to 10 ppm

**Semantic type:** Laboratory or Test Result

**Definition:** An indication that the concentration of carbon monoxide (CO) in a sample of exhaled air is greater than or equal to 10 ppm. This concentration of exhaled CO may indicate that the test subject is a smoker.

**Synonyms:** - Exhaled CO Greater than or Equal to 10 ppm - Exhaled CO Level >= 10 ppm - Exhaled Carbon Monoxide Greater than or Equal to 10 ppm - Exhaled Carbon Monoxide Level Greater than or Equal to 10 ppm