Table 5
Predictive performance of venous blood gas parameters
| Venous blood cut-off | AUC | Sensitivity % | Specificity % | Correctly classified %* | N | |
|---|---|---|---|---|---|---|
| Arterial pH ≥7.35 | 7.34 | 0.92 | 88.9 | 95.6 | 87 | 234 |
 (mEq/L) ≥21 | 21.45 | 0.98 | 96 | 100 | 97 | 232 |
*Correctly classified refers to percentage of patients correctly classified both above and below given parameter. AUC; area under curve.