Hypoglycemia Evaluation and Management
Definition and Recognition
- The American Diabetes Association defines hypoglycemia as blood glucose <70 mg/dL, with severity classified in three levels: Level 1 (<70 mg/dL but ≥54 mg/dL), Level 2 (<54 mg/dL), and Level 3 (severe event requiring assistance) 1, 3
- Review of hypoglycemia history is recommended at every clinical encounter for all individuals at risk 1
- Screening for impaired hypoglycemia awareness is recommended at least annually using validated tools like Clarke score, Gold score, or Pedersen-Bjergaard score 1, 3
Immediate Treatment Protocol
- For conscious patients with hypoglycemia, the American Diabetes Association recommends administering 15-20g of glucose orally and rechecking blood glucose after 15 minutes 1
- If hypoglycemia persists, treatment with another 15-20g of glucose is recommended 2
- Once blood glucose is trending up, providing a meal or snack to prevent recurrence is advised 3
Comprehensive Evaluation
- Assessment of risk factors for hypoglycemia, including medication use, history of severe hypoglycemia, and renal insufficiency, is recommended 1, 4
- Screening for fear of hypoglycemia in high-risk individuals is recommended at least annually 1
- Evaluation of cognitive function regularly, with increased vigilance for hypoglycemia if impairment is found, is advised 1
Prevention Strategies
- Consideration of continuous glucose monitoring (CGM) for individuals at high risk for hypoglycemia is recommended 1
- Prescription of glucagon for all individuals taking insulin or at high risk for hypoglycemia is advised 1
- Provision of structured education on hypoglycemia prevention and treatment is recommended 1
- For patients with hypoglycemia unawareness or recent severe hypoglycemia, raising glycemic targets to strictly avoid hypoglycemia and considering deintensifying or switching diabetes medications is recommended 1, 3
- Implementation of a standardized hospital-wide hypoglycemia treatment protocol in hospitalized patients is advised 4, 6, 7