Laboratory variables | Timing (hours) | Group 1 0.9% NS (N=72) Mean ± SD | Group2 0.45% NS (N=49) Mean ± SD | P value |
---|---|---|---|---|
PH | 4 | 7.16 ± 0.1 | 7.14 ± 0.13 | 0.37 |
8 | 7.23 ± 0.09 | 7.20 ± 0.1 | 0.55 | |
At recovery | 7.35 ± 0.04 | 7.36 ± 0.05 | 0.21 | |
HCO3 (meq/L) | 4 | 7.34 ± 3.4 | 6.98 ± 3.18 | 0.56 |
8 | 9.8 ± 3.6 | 8.8 ± 3.5 | 0.5 | |
At recovery | 16.9 ± 1.37 | 17.02 ± 1.96 | 0.82 | |
Serum Na (meq/L) | 4 | 136.28 ± 4.94 | 135.94 ± 4.64 | 0.70 |
8 | 137.3 ± 5.4 | 138.4 ± 6.6 | 0.98 | |
At recovery | 140.7 ± 6.5 | 140.3 ± 5.4 | 0.69 | |
Corrected Na (meq/L) | 4 | 142 ± 4.8 | 143.1 ± 4.6 | 0.18 |
8 | 141 ± 6 | 143.4 ± 6.2 | 0.12 | |
At recovery | 140.7 ± 6.5 | 140.3 ± 5.4 | 0.69 | |
CL (meq/L) | 4 | 106.28 ± 5.1 | 103 ± 3.6 | 0.002 |
8 | 108.4 ± 5.6 | 104.7 ± 6.1 | 0.06 | |
CL:Na ratio | 4 | 0.78 ± 0.03 | 0.76 ± 0.02 | 0.001 |
8 | 0.79 ± 0.02 | 0.76 ± 0.03 | 0.000 | |
Anion gap | 4 | 22.8 ± 5.1 | 26.1 ± 5 | 0.002 |
8 | 18.5 ± 4.5 | 25.8 ± 5.6 | 0.000 | |
BHOH | 4 | 4.6 ± 1.1 | 4.9 ± 1.5 | 0.97 |
8 | 4.05 ± 1.1 | 4.09 ± 1.4 | 0.88 | |
Plasma glucose (mg/dl) | 4 | 389 ± 166 | 433 ± 145 | 0.35 |
8 | 307.3 ± 134 | 324.8 ± 124.5 | 0.51 | |
Effective serum osmolality (mosmol/L) | 4 | 293 ± 12.4 | 296 ± 12.7 | 0.21 |
8 | 291 ± 12.5 | 295 ± 13 | 0.22 | |
Hyperchloremia n (%) | 0 | 9 (15.3%) | 4 (11.1%) | 0.4 |
4 | 16 (28.6%) | 2 (4.9%) | 0.002 | |
8 | 15 (34.9%) | 4 (12.5%) | 0.02 |