1. Home
  2. Health
  3. Smoking Cessation

Definition of COHb

By Terry Martin, About.com

Updated January 07, 2008

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

Definition:
When carbon monoxide (CO) binds with hemoglobin in the red blood cells in the lungs, it's called carboxyhemoglobin (COHb). Measuring COHb in the bloodstream reveals the level of exposure a person has had to carbon monoxide.

Cigarette smoke can contain high levels of carbon monoxide.

See also: Carbon Monoxide in Cigarette Smoke
Explore Smoking Cessation
About.com Special Features

Learn how you can reduce your your numbers with these nutrition and exercise tips. More >

Keep yourself, and your family, happy and healthy this fall with these tips. More >

We comply with the HONcode standard for trustworthy health information: verify here.
  1. Home
  2. Health
  3. Smoking Cessation
  4. Quit Smoking Help
  5. Glossary of Terms
  6. Definition of COHb - Carboxyhemoglobin - Carbon Monoxide in Cigarette Smoke>

©2009 About.com, a part of The New York Times Company.

All rights reserved.