Exogenous insulin autoimmune syndrome: A case report and review of literature

Table 1 Findings from insulin release test and C-peptide release test

Project	0 h	2 h	After 10 d of insulin withdrawal	0 h	2 h
Insulin release test	> 600 mU/L	> 600 mU/L		> 600 mU/L	> 600 mU/L
C-peptide release test	3.60 ng/mL	4.90 ng/mL		4.90 ng/mL	6.62 ng/mL

Table 2 Insulin antibody test

Project		After 10 d of insulin withdrawal		Reference value
Islet cell antibody	0.05		0.05	< 0.9 COI
Serum anti-glutamic acid decarboxylase antibody	0.96		0.99	< 10 IU/mL
Insulin autoantibody	12.6		13.3	< 0.9 COI