BYPASS-OMA: Hypoglycemic Hyperinsulinemic Nesidioblastosis after Gastric Bypass Surgery—A Case Report and Review of the Literature

Table 2

Serologic exclusion of causes for hypoglycemia.

Lab	Value	Reference
Insulin autoantibody (U/mL)	<0.4	<0.4
Sulfonylurea screen	Negative	N/A
ACTH/cortrosyn stimulation (ug/dL)	1 hour cortisol 19.6	>20 ug/dL
Chromogranin A (ng/mL)	82	25–140
Transglutaminase IgG Abs (U/mL)	0.5	<1
Transglutaminase IgA Abs (U/mL)	0.5	<1
Gliadin peptide Ag IgG (U)	2	<20
Gliadin peptide Ag IgA (U)	3	<20