Table 2. Median Concentration of Measured Variables over the Three Time Points
* Significant change (P < 0.025) from t1to t2.
† Significant change (P < 0.025) from t2to t3.
‡ Significant change (P < 0.025) from t1to t3.
Pco2= partial pressure of carbon dioxide; SIDa = strong ion difference apparent; SIDe = strong ion difference effective; SIG = strong ion gap.