Variable Group Study group No= 50 Mean ± SD Control group No= 40 Mean ± SD t-test p-value Statistical significance PH 7.30 ± 0.072 7.38 ± 0.03 5.9 0.00 p<0.01** (HS) PCO2  mmHg 31.5 ± 8.4 37.8 ± 2.7 4.3 0.00 p<0.01** (HS) PO2   mmHg 62.2 ± 22.1 97.5 ± 1.4 9.8 0.00 p<0.01** (HS) SO2 % 84 ± 10.4 98 .8 ± 1.01 8.7 0.00 p<0.01** (HS) HCO3 Mmol/l 16.1 ± 5.08 23.2 ± 1.1 8.5 0.00 p<0.01** (HS) ** (HS) = highly significant

Table 6: Mean ±SD levels of Arterial blood gases parameters among study group and control group.