Hypoglycemia (Low Blood Sugar - The 15/15 Rule)

What is Hypoglycemia?

Hypoglycemia means blood sugar is too low (usually below 70 mg/dL). It happens when there is too much insulin and not enough glucose.

Symptoms:

  • Mild: Shaking, sweating, fast heartbeat, anxiety, hunger.
  • Moderate: Confusion, dizziness, blurred vision, difficulty concentrating.
  • Severe: Seizures, loss of consciousness.

The 15/15 Rule (Treatment):

If your blood sugar is low:

  1. Eat 15 grams of fast-acting carbs: 4 glucose tablets, 1/2 cup juice, 1 tablespoon honey, or 3-4 hard candies.
  2. Wait 15 minutes.
  3. Recheck blood sugar. If still low, repeat.

DO NOT: Use chocolate, peanut butter, or ice cream. Fat slows absorption.

What if someone can't swallow or is unconscious?

  • Glucagon Injection: A rescue medication given by injection or nasal spray (Baqsimi). Every person on insulin should have this at home.
  • Call 911.

Causes in People with Diabetes:

  • Too much insulin.
  • Skipping a meal.
  • More exercise than usual.
  • Alcohol (blocks liver glucose release).

Resources: