What is %FCOHb?
When a person smokes cigarettes whilst pregnant, the foetus is exposed to elevated levels of %COHb, and as a result the foetal blood will have an increased level of %COHb(1), we refer to this calculation as %FCOHb (% Foetal Carboxyhaemoglobin). Simply put, %FCOHb is an estimation of how much CO a foetus has been exposed to.
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1. Causes and clinical significance of increased carboxyhemoglobin [Internet]. Acutecaretesting.org. 2021 [cited 23 April 2021]. Available from: https://acutecaretesting.org/en/articles/causes-and-clinical-significance-of-increased-carboxyhemoglobin