What is the normal range for carboxyhemoglobin (COHb) levels in a non-smoker?

The normal range for carboxyhemoglobin levels in a non-smoker is typically 0-1%. This value reflects the baseline level of carbon monoxide in the bloodstream that may be present in individuals who are not exposed to tobacco smoke or other sources of carbon monoxide. In non-smokers, the COHb levels are kept very low as their exposure to carbon monoxide is minimal.

Higher levels, such as those found in other options, may be indicative of potential carbon monoxide exposure from sources like smoking or environmental pollution. It is important for health professionals to understand these levels, as elevated COHb can signal health risks and may require further investigation or intervention. Therefore, the normal range of 0-1% is set to ensure a healthy baseline for non-smokers, reflecting low exposure and a reduced risk for carbon monoxide-related health issues.