INS and Hypoglycemia: Subsequently, hypoglycemia was allowed to develop, and blood was drawn for the standard tests (glucose, insulin, C-peptide, GH, FT4, TSH, and cortisol) during the critical period. Plasma cortisol was very low (0.4 μg/dL), ACTH was elevated (316 pg/mL), and 17-OHP was normal (14.86 ng/mL).