]> 2026-07-31T11:52:06+00:00 WBR0223 0 en Exogenous insulin '''Incorrect''' : Exogenous insulin administration leads to suppression of endogenous insulin production and hence C-peptide levels would be low. Insulinoma Sulphonylurea Prolonged fasting '''Incorrect''' : Prolonged fasting results in underproduction of both insulin and C-peptide. Autoimmune hypoglycemia Emergency Room A 45 yr old is brought to the ED by his son. He was in his usual state this morning when he suddenly developed headaches, sweating and loss of consciousness. Physical examination shows a diaphoretic and comatose man. His fingerpick test show glucose of 45mg/dl. He regains consciousness after IV dextrose. He is then admitted to the hospital and recovers well on dextrose insulin infusion. He states that he is stressed out in his work and further investigation shows elevated serum insulin and C-peptide. Plasma insulin antibody is negative. What is the most probable cause for this episode? C Endocrine 2020-10-27T23:48:57Z 2459150.4923264 WBR0223