What question did this study set out to answer?

The aim is to evaluate the accuracy of the Ohmeda Biox III pulse oximeter in measuring arterial oxygen saturation using different cuvettes.

Clinical Evaluation of the Ohmeda Biox III Pulse Oximeter: A Comparison of Finger and Ear Cuvettes

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Evaluation reveals accurate arterial oxygen saturation monitoring using finger cuvette in patients, suggesting clinical reliability.

The aim is to evaluate the accuracy of the Ohmeda Biox III pulse oximeter in measuring arterial oxygen saturation using different cuvettes.
Conducted 201 measurements on 109 patients with various illnesses.
Simultaneous arterial blood sampling alongside oximeter measurements.
Compared data from both ear and finger cuvettes using an IL282 CO-Oximeter.
Finger cuvette recorded 100% acceptance rate; ear cuvette 91.5%.
Mean difference for finger cuvette was 0.21%, and for ear cuvette was 0.53% (clinically insignificant).
High correlation of 0.904 for finger and 0.871 for ear cuvette measurements.

Cecil et al. (1985) studied this question.

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