A compound formed in the blood by the binding of carbon monoxide to haemoglobin. It is stable and therefore cannot absorb or transport oxygen.
〔生化〕碳氧血红蛋白
Example sentencesExamples
What happens is the CO combines with the haemoglobin in the blood to form the relatively stable carboxyhaemoglobin and renders the blood ineffectual as an oxygen carrier.
If someone has the symptoms of CO poisoning, a blood sample will be taken to check the amount of carboxyhaemoglobin in the blood.
Pulse oximetry cannot differentiate between oxyhaemoglobin and carboxyhaemoglobin, and may therefore give normal results.
The presence of carboxyhaemoglobin also diminishes the oxygen held by the normal haemoglobin, which further compounds the hypoxic effect.
When haemoglobin mixes with carbon monoxide it produces a compound called carboxyhaemoglobin.