In spite of a highly significant correlation, the limits of agreement between the two methods were wide for P O 2 .
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Prediction of arterial blood gas values from arterialized earlobe blood gas values in patients treated with mechanical ventilation.
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The sentences
Interestingly and despite fewer normal P O 2 values, the study of PITKIN et al ,[ 5 ] also showed a trend towards increased difference between arterial and arterialized P O 2 with increasing mean P O 2 values.