Normal Reference Ranges
Adult
70 - 99 mg/dL
Pediatric
70 - 100 mg/dL
Clinical Significance
Primary source of energy for cellular metabolism. Fasting levels ≥ 126 mg/dL on two occasions confirm diabetes.
Causes of High
- Diabetes Mellitus
- Stress response (surgery/infection)
- Cushing syndrome
- Corticosteroid therapy
- Pancreatitis
Causes of Low
- Insulin overdose
- Insulinoma
- Adrenal insufficiency
- Severe liver disease
- Starvation