Fetal diagnosis and therapy
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Fetal. Diagn. Ther. · Jul 1998
Comparative StudyDoes the hemoglobin concentration in fetal blood interfere with the accuracy of fetal reflection pulse oximetry?
Our goal was to investigate the influence of the fetal hemoglobin (Hb) concentration on the accuracy of reflection pulse oximetry. ⋯ Pulse oximetry measurements seem to reflect oxygen saturation in fetal blood, however further improvement is necessary. The Hb concentration in fetal blood does not interfere with the accuracy of fetal pulse oximetry and need not be taken into consideration in calibration curves.