Which of the following is true regarding carboxyhemoglobin?

Question

Quizplus · Accepted Answer

Smokers,depending on how much and what they smoke (e.g.,cigarettes,cigars),may have as much as 20% carboxyhemoglobin in their blood.The concentration of carboxyhemoglobin in normal blood varies depending on the environment in which a person lives (more in an urban environment,for example,than in a rural location),but it is generally less than 1%.Levels greater than 40% cause coma and death.The addition of hydrogen sulfide to hemoglobin forms sulfhemoglobin.

Which of the Following Is True Regarding Carboxyhemoglobin