What question did this study set out to answer?

To evaluate the effectiveness and accuracy of the BTI Biox II Ear Oximeter in measuring oxygen saturation.

A Clinical Evaluation of the BTI Biox II Ear Oximeter

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Clinical evaluation assesses oxygen saturation measurement in patients, indicating the device's reliability and usefulness.

To evaluate the effectiveness and accuracy of the BTI Biox II Ear Oximeter in measuring oxygen saturation.
Compared oxygen saturation values from the ear oximeter to direct arterial blood samples.
Studied a total of 183 patients with varying blood gas conditions.
Analyzed correlation between ear oximeter and CO-Oximeter readings.
Coefficient of correlation (r) of 0.829 between ear oximeter and arterial samples.
Correlation (r) of 0.914 when comparing total SaCO and SaO2 readings.
Highest correlation (r = 0.932) observed in patients with SaCO ≤ 3%.

Shippy et al. (1984) studied this question.

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