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Table 1.

Patient baseline characteristics.

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Fig 1.

Bland Altman plots of agreement.

Mean difference (solid line) with 95% limits of agreement (dashed lines), adjusted for repeated assessments (87 measurements in 46 patients). Agreement is shown for v-TAC vs. ABG regarding a) pH; b) pCO2; c) pO2.

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Table 2.

Comparison of pH, pCO2 and pO2 of v-TAC and venous blood gas compared with arterial blood gas.

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Table 2 Expand

Table 3.

Sensitivity, specificity and predictive values of v-TAC, VBG and SpO2 for hypercapnia and hypoxemia compared with ABG.

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Table 3 Expand