Burn trauma leads to hyperglycemia and elevated fasting serum insulin concentrations, indicating insulin resistance. Histograms depict fasting serum concentrations of glucose (A), insulin (B), and C-peptide (C). D, HbA1c in burned pediatric patients is not statistically significant from nonburned children. Bars represent means; error bars correspond to sem. Asterisks denote statistical difference between burned children vs. nonburned children, P < 0.05.