Diagnosis
The diagnosis of insulinoma is suspected in a patient with symptomatic fasting hypoglycemia. The conditions of Whipple’s triad need to be met for the diagnosis of "true hypoglycemia" to be made:
- symptoms and signs of hypoglycemia,
- concomitant plasma glucose level of 45 mg/dL (2.5 mmol/L) or less, and
- reversibility of symptoms with administration of glucose.
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