Pediatric Hyperglycemia (High Blood Sugar)

Pediatric Hyperglycemia (High Blood Sugar)



Hyperglycemia, or high blood sugar, occurs when the blood glucose is above 250 mg/dl.  

Expanded Overview

Hyperglycemia is caused by too much food, not enough insulin, less activity than usual, stress or illness. Children will sometimes outgrow their insulin dosage, and have high glucose values.  Be sure to discuss this with your child’s endocrinologist and/or primary care provider. 

Call 911 if the patient is unconscious or having a seizure followed by instructions given by your endocrinologist or primary care provider.

Normal glucose levels:

  • Before a meal: 80 – 130
  • 2 hours after a meal: less than 160


  • Not eating enough carbs at meals or snacks
  • Too much insulin or taking the wrong dose
  • Extra exercise
  • Illness with vomiting


  • Increased thirst
  • Increased urination
  • Fatigue
  • Fruity breath odor
  • Stomachache 
  • Vomiting
  • Weight loss


  • 6 – 12 oz. of water every 20 minutes
  • Insulin therapy
  • Contact your endocrinologist and or primary care provider


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