Carboxyhaemoglobinaemia and pulse oximetry.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 2031826.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We compared measurements obtained with a pulse oximeter (SpO2) against values obtained from a CO-oximeter in a patient with carbon monoxide poisoning. SpO2 was equal to the sum of the oxyhaemoglobin (HbO) and carboxyhaemoglobin (HbCO) values over the range of HbCO from 30 to 1%. This confirms the experimental findings that pulse oximeters measure HbCO as HbO. The patient was treated with oxygen (FlO2 = 50%) and recovered without any sequelae. Under these circumstances, the half-life of HbCO was approximately 2 h.
Medical subject headings
- Carbon Monoxide Poisoning
- Carboxyhemoglobin
- Oximetry
- Oxyhemoglobins