Table 1.

Intraoperative laboratory investigations for insulinoma removal.

	Capillary blood glucose (mmol/L)	Plasma glucose (mmol/L)	Insulin level (pmol/L)	C-peptide level(nmol/L)	Glucose infusion rate (gm/hour)
At time of tumor manipulation	4.9				17.5
At time of tumor removal	11.9	13.2	499.31	2.02	17.5
15 minutes post-tumor removal	12.2	15.2	169.44	1.27	17.5
30 minutes post-tumor removal	14.4	15.8	172.22	1.12	12.5
45 minutes post-tumor removal	11.8				6.25