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- M Vegfors and C Lennmarken.
- Department of Anaesthesia and Intensive Care, University Hospital, Linköping, Sweden.
- Br J Anaesth. 1991 May 1; 66 (5): 625-6.
AbstractWe 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.
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