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Table 2 Biochemical data at diagnosis (excluding asymptomatic patients) and at last visit (all patients)

From: Urea cycle disorders in Spain: an observational, cross-sectional and multicentric study of 104 cases

Biochemical data * At clinical onset (N = 91) At last visit (N = 96) Normal values
Ammonia (μmol/L) 298 (169-615) 33 (27-42) 10-55 (80**)
Glutamine (μmol/L) 1124 (859-1546) 716 (545-908) 350-650
Prothrombin activity (%) 60 (32.6-82) 91 (85-100) 75-130
ALT (IU/L) 76 (38-159) 24 (16-34) 5-39
AST (IU/L) 53.5 (36.7-161) 27.5 (19-37.2) 5-37
Bilirrubin (mg/dL) 0.60 (0.43-3.77) 0.53 (0.30-0.80) 0.20-1.10
Albumin (g/L) 3.79 (3-4.41) 4.30 (3.90-4.50) 3.80-5.40
pH 7.43 (7.36-7.46) - 7.35-7.45
Bicarbonate (mmol/L) 21 (19-24) - 23-27
  1. *Median and interquartile range (IQR); **Normal values in newborns.