Management of Intentional Insulin Overdose with Severe Hypoglycemia

Immediate Emergency Management

The American College of Endocrinology recommends administering 10-20 grams of intravenous 50% dextrose immediately upon recognition of severe hypoglycemia, titrated based on the initial glucose value 1, 2
Stop any insulin infusion if currently running, as recommended by the American Diabetes Association 1, 3
If the patient is unconscious or unable to swallow, never attempt oral glucose due to aspiration risk—use IV dextrose or IM glucagon instead, as advised by the American Association of Clinical Endocrinologists 1, 2
For conscious patients who can safely swallow, 15-20 grams of oral glucose is preferred once they regain consciousness, according to the American Diabetes Association 4, 1

A single 25-gram IV dextrose dose produces blood glucose increases of approximately 162 mg/dL at 5 minutes but drops to 63.5 mg/dL by 15 minutes, with return to baseline by 30 minutes—explaining why repeated dosing is necessary, as reported by the American College of Clinical Pharmacy 1

Recheck blood glucose every 15 minutes after initial dextrose administration until glucose stabilizes above 70 mg/dL, as recommended by the American Association of Clinical Endocrinologists 1, 2, 3
Target blood glucose >70 mg/dL initially, then maintain 100-180 mg/dL for hospitalized patients, according to the Society of Critical Care Medicine 1, 2

Any episode of hypoglycemia <70 mg/dL mandates immediate review and modification of the diabetes management plan if the patient has diabetes, as advised by the American Diabetes Association 3
Document all hypoglycemic episodes in the electronic health record and track for quality assessment, as recommended by the American Medical Association 5, 3