Table 1 Laboratory evaluation for hypoglycemia

Glucose

26mg/dL

74 to 99mg/dL

Insulin

<2.0μIU/mL

<20μIU/mL

Proinsulin

2.7pmol/L

3 to 20pmol/L

C-peptide of insulin

<0.10ng/mL

0.50 to 2.00ng/mL

Beta-hydroxybutyrate

<0.1mmol/L

<0.4mmol/L

Insulin-like growth factor I

35ng/mL (4.59nmol/L)^a

55 to 225ng/mL

Insulin-like growth factor II

331ng/mL (44.02nmol/L)^a

288 to 736ng/mL

Adrenocorticotropic hormone

20pg/mL

9 to 52pg/mL

Cortisol

14.4μg/dL at 6:59 a.m.

at 8:00 a.m.: 4 to 19μg/dL

Glucagon stimulation test

Before glucagon: 26mg/dL

>30mg/dL

10 minutes: 33mg/dL

20 minutes: 44mg/dL

30 minutes: 54mg/dL

Total Δ: 28mg/dL