<unk>  findings consistent with the diagnosis of insulinoma include serum glucose < 55 mg/dL, serum Insulin > 5-10 μU/mL, serum C-Peptide > 200 pmol/L, and serum proinsulin ≥ 22 pmol/L. Patients with insulinoma may have elevated insulin to glucose ratio of > 0.4, which is usually suggestive of insulinoma after a 72-hour fast<unk> gold standard<unk> . 33% patients have clinical symptoms within 12 hours of the fasting, 80% develop within 24 hours, 90% develop within 48 hours, and 100% develop within 72 hours.
Insulinoma laboratory tests
Insulinoma MRI
Insulinoma ultrasound
Glucagonoma MRI
Addison's disease physical examination
Insulinoma surgery
Hypopituitarism physical examination
Glucagonoma physical examination