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Table 1 Mean (±SD) values for blood ammonia concentration, VPA doses, and liver function as well as percentage of patients exhibiting clinically significant elevations of the respective laboratory data

From: Association between the blood concentrations of ammonia and carnitine/amino acid of schizophrenic patients treated with valproic acid

constituent Unit Total (n = 37)
Reference range Mean ± SD of patients Below Reference range % Patients exhibiting values of 1.3-times or greater than the upper limits of the reference range (%)
ammonia μg/dL 18-70 64 ± 19 0 30
AST IU/L 7-38 21 ± 7 0 5
ALT IU/L 4-44 23 ± 15 0 11
VPA concentration μg/mL 50-100 51 ± 24 54 5
  1. Abbreviations: AST Aspartate transaminase, ALT Alanine transaminase, VPA valproic acid