Severe hypoglycemia in children can lead to damage of which organ?

• A. Heart
• B. Lungs
• C. Brain
• D. Kidneys

Answer: (C)

The brain is the organ most sensitive to severe hypoglycemia because it relies almost exclusively on glucose for energy and has little to no glucose reserve. When blood glucose drops too low, brain cells can’t produce enough ATP, their ion gradients fail, and neurons become damaged. This can rapidly lead to symptoms like confusion, seizures, loss of consciousness, and, if prolonged, permanent neurological injury. While other organs like the heart, lungs, or kidneys can be stressed by metabolic illness, the characteristic and most damaging effect of severe hypoglycemia is on brain tissue.