INS and Impaired glucose tolerance: An oral glucose tolerance test (OGTT) revealed fasting blood glucose of 3.41 mmol/L, insulin of 10.07 μIU/mL, and C-peptide of 0.81 ng/mL; 2-hour postprandial values were 12.08 mmol/L for glucose, 28.98 μIU/mL for insulin, and 1.53 ng/mL for C-peptide, consistent with impaired glucose tolerance.