Abstract
Measurement of arterial oxygen saturation by pulse oximetry was performed in two patients with acute and chronic anaemia (haemoglobin concentrations: 2.9 mmol/l (4.7 g/dl) and 1.9 mmol/l (3.0 g/dl), respectively) using a Radiometer OXI and a Nellcor N-200 pulse oximeter. The two oximeters read alternating different values in the two patients. In conclusion, pulse oximeters are able to give a value for oxygen saturation even at extreme anaemia, and when a high value is given, it possibly reflects arterial oxygen saturation. The value of pulse oximetry in severe anaemia is discussed.
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Ramsing, T., Rosenberg, J. Pulse oximetry in severe anaemia. Intensive Care Med 18, 125–126 (1992). https://doi.org/10.1007/BF01705047
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DOI: https://doi.org/10.1007/BF01705047