Evaluation and Management of Non-Diabetic Hypoglycemia with Neuroglycopenic Symptoms

Diagnostic Thresholds and Management

The diagnostic threshold for clinically significant hypoglycemia requiring immediate action is <54 mg/dL (<3.0 mmol/L), which represents Level 2 hypoglycemia where neuroglycopenic symptoms begin to occur, as recommended by the American Diabetes Association 1, 2
Glucose (15-20 g) is the preferred treatment for conscious individuals with blood glucose <70 mg/dL (3.9 mmol/L), or 50% IV glucose if unable to take oral, according to the American Diabetes Association 1, 2
After treatment, recheck glucose in 15 minutes; if still low, repeat treatment, as suggested by the American Diabetes Association 1
Once glucose is trending up, provide a meal or snack to prevent recurrence, as recommended by the American Diabetes Association 1
Glucagon should be prescribed for patients at high risk for Level 2 or 3 hypoglycemia, and caregivers/family should know how to administer it, as advised by the American Diabetes Association 1, 2

The American Diabetes Association, as published in Diabetes Care, recommends obtaining plasma glucose measurement during a spontaneous symptomatic episode to document glucose <70 mg/dL (3.9 mmol/L), and recording specific symptoms such as shakiness, confusion, tachycardia, sweating, irritability, and hunger, and confirming symptom resolution after glucose administration or food intake 3
The American Diabetes Association, as published in Diabetes Care, suggests obtaining insulin level, C-peptide level, and proinsulin level during a spontaneous symptomatic episode to help differentiate endogenous hyperinsulinism from other causes 3

Documenting all medications, including over-the-counter drugs and supplements, is crucial, as recommended by the American Diabetes Association, as published in Diabetes Care 3