Penn Rodebaugh Diabetes Center
 

Low Blood Sugar

Insulin reaction, insulin shock and hypoglycemia are different names for the same thing — low blood sugar. The symptoms you feel are your body's way of telling you that the amount of glucose in your body is dropping or has dropped. Blood sugar is too low when it's below 70!

Causes

  • Not eating enough or at the right time
  • Skipping meals
  • More exercise or activity than usual
  • Too much insulin or diabetes medicine
  • Alcohol on an empty stomach

Symptoms

  • Symptoms seem to occur most frequently before meals, during or after exercise and at peak action times of your insulin or diabetes medicine.
  • Symptoms occur suddenly.
  • Early warning signals can progress to advanced warning signals quickly.

When your blood sugar drops, early signals might include:

  • Shaking or anxiety
  • Hunger
  • Sweating
  • Fatigue
  • Dizziness
  • Numbness or tingling of the lips
  • Weakness
  • Irritability

If low blood sugar is untreated, symptoms can become more severe. For example:

  • Confusion
  • Poor coordination
  • Double vision
  • Combativeness

Low blood sugar in its most advanced stages can cause:

  • Unconsciousness
  • Convulsions

Treatment

Remember, symptoms occur suddenly. You must be prepared to treat low blood sugar quickly! Follow these steps for treatment:

  • If you have symptoms of low blood sugar, test your blood glucose.
  • If the meter reads less than 70, treat the reaction by
    eating food that contains 15 grams of a fast-acting
    carbohydrate.  (For blood sugars less than 50, treat with
    30 grams of a fast acting carbohydrate)
  • If you are unable to test, treat the symptoms by
    eating or drinking something high in sugar or the equivalent of 15 grams of a fast acting carbohydrate.
  • Some examples of 15 grams of a fast-acting carbohydrate are:
    • 1/2 cup apple or orange juice
    • 2 tbsp raisins
    • 1 fruit roll-up
    • 1/3 cup grape or cranberry juice
    • 1/2 cup regular soda
    • 6-7 Lifesavers
    • 2 tsp honey or corn syrup
    • 3 packets of sugar
    • 1 cup low fat milk
    • 3-4 glucose tablets
  • Then: Recheck your blood sugar after 15 minutes
  • If blood sugar is less than 70, treat again with
    15 grams of a fast-acting carbohydrate.  (Continue
    re-checking and treating blood sugar every 15 minutes until blood sugar is greater than 70.)
  • When blood sugar is greater than 70, eat your meal (if it's time!) or a snack that contains starch and protein. For example:
    • Cheese or peanut butter crackers or
    • Crackers and milk or
    • 1/2 Sandwich

Prevention

  • Follow your meal plan. Take your medications and eat on time!
  • Don't skip meals
  • Always take the right dose of diabetes medicine
  • Eat a snack before strenuous exercise
  • Check blood sugar often
  • Always wear a medical ID necklace or bracelet in case of emergency

 


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