Control HIE At 24 hrs At 72 hrs At 24 hrs At 72 hrs PCO2(mmHg) 32.14 ± 5.93 27.07 ± 5.65 33.89 ± 7.13NS 39.84 ± 9.35*** PO2(mmHg) 46.10 ± 10.22 60.31 ± 14.54 54.32 ± 29.01NS 44.74 ± 7.15*** CO2(mEq/L) 17.93 ± 1.94 18.31 ± 2.16 16.89 ± 4.15NS 21.37 ± 3.90*** HCO3(mEq/L) 21.52 ± 2.50 19.45 ± 2.61 19.84 ± 5.48NS 23.37 ± 3.11*** Sodium (mEq/L) 139.90 ± 2.55 138.45 ± 2.57 141.58 ± 8.40NS 140.16 ± 5.97NS Potassium (mEq/L) 4.98 ± 0.41 4.91 ± 0.61 3.82 ± 0.58*** 4.32 ± 1.19*** Chloride (mEq/L) 108.93 ± 2.67 106.48 ± 2.87 104.32 ± 4.68*** 103.42 ± 6.83*** Calcium (millimol/L) 2.16 ± 0.19 2.14 ± 0.27 2.05 ± 0.23NS 2.05 ± 0.23NS Phosphorus (millimol/L) 2.07 ± 0.25 2.36 ± 0.23 1.68 ± 0.33*** 1.99 ± 0.54*** Magnesium  (millimol/L) 0.86 ± 0.19 0.84 ± 0.08 0.80 ± 0.15NS 0.84 ± 0.11NS ***Significant values P<0.001, NS Non-significant values P>0.05.

Table 2: Mean ± SD of arterial blood PH, blood gases and electrolytes in both control and HIE neonates that included in the study at 24 and 72 hours after labour.