Table 5 Routine screening investigations for diagnosis of the IEM of the studied patients

Blood PH analysis

• Low (acidosis)

38 (19%)

• Normal

152 (76%)

• High (alkalosis)

10 (5%)

Plasma ammonia

• Normal (15–45 μmol/L)

96 (48%)

• High (≥ 45 μmol/L)

100 (50%)

• Not done

4 (2%)

Plasma lactate

• Normal (10–16 mg/dl)

134 (67%)

• High (≥ 16 mg/dl)

64 (32%)

• Not done

2 (1%)

Serum glucose level

• Normal (5.5–9 mmol/L)

136 (68%)

• Low (< 5.5 mol/L)

64 (32%)