Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,925,989,346 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Carboxyhemoglobin

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia 0.01 sec.
carboxyhemoglobin [kär¦bäk·sē¦hē·mə‚glō·bən]
(biochemistry)

Carboxyhemoglobin 

HbCO, a compound formed by the binding of carbon monoxide (CO) to hemoglobin (Hb).

Carboxyhemoglobin solutions are bright red. Their absorption spectrum has maximums at wavelengths of 570 and 539 mμ. Carboxyhemoglobin breaks down to Hb and CO 10, 000 times more slowly than does oxyhemoglobin to Hb and O2. Therefore, when CO is present in inhaled air the oxygen is gradually displaced from the hemoglobin. Even at an atmospheric CO concentration of 0.1 percent, more than half the hemoglobin in the blood is converted to carboxyhemoglobin, interfering with the transfer of O2 from the lungs to the tissues and causing carbonmonoxide poisoning.



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
Experiments show that when carboxyhemoglobin (hemoglobin bound to carbon monoxide) is increased or total hemoglobin levels are decreased, the peripheral chemoreceptors do not respond.
Chen and Fechter showed that carboxyhemoglobin levels approach steady state within 30 minutes of exposure onset and stabilize by 90 minutes of exposure [5].
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.