Prolonged hypoglycemia: causes and correction strategies

Not all hypoglycemic episodes respond in the same way. Some recover quickly after consuming 15g of fast-acting carbohydrates, while others persist despite repeated attempts to treat them. These prolonged hypoglycemic episodes require a thorough understanding of their causes and a tailored strategy for effective management.

What is prolonged hypoglycemia?

Prolonged hypoglycemia is defined as a condition where, after rapid sugar intake, blood glucose levels remain:

• remains low for more than 20 to 30 minutes,
• requires several successive contributions,
• or relapses shortly after an initial correction.

What are the possible causes?

1. The presence of active insulin

A recent bolus or a rapid insulin stacking effect can neutralize ingested glucose. As a result, the first attempt at refeeding sugar seems ineffective.

2. Physical activity

During and after exercise, muscles continue to use glucose. Post-exercise hypoglycemia can therefore persist and require several successive intakes to stabilize blood sugar levels.

3. Meals rich in fats and proteins

A fatty or protein-rich meal slows down digestion. Insulin acts quickly, but dietary glucose arrives later in the bloodstream, creating an imbalance that promotes prolonged hypoglycemic episodes.

4. Alcohol

Alcohol inhibits the liver's ability to release glucose. Even after consuming sugar, blood sugar levels may remain low for a longer period.

Strategies for correcting prolonged hypoglycemia

Apply the rule of 15… and adapt

• Take 15g of fast-acting glucose (stick, tablets, soda).
• Check after 15 minutes.
• If needed → take another 15g of glucose.

Adjust according to the situation

• After exercise: plan for a second dose of glucose.
• In case of active insulin: repeat the check more often.
• In case of a fatty meal: add complex carbohydrates (bread, biscuits) after the quick correction.

Always check again

A stable blood glucose level should not be taken for granted: check 1 hour later to avoid relapse.

The first step involves precise and appropriate re-sugaring , according to the rule of 15.

> precise and appropriate re-sugaring

Why glucose sticks are the most reliable solution

• Immediate action : directly assimilated, without prior digestion.
• Precise dosage : each stick contains the correct amount.
• Convenience : always available, even when traveling.
• Safety : easy to use even in cases of severe hypotension with confusion.

For prolonged hypoglycemia, glucose gel is the basis of re-sugaring, with a follow-up with slower-release carbohydrates if necessary.

Key points to remember

• A prolonged hypo is not a “common” hypo: its causes must be understood.
• The main factors: active insulin, exercise, rich meals, alcohol.
• The rule of 15 remains valid, but must be adapted to the situation .
• Pure glucose is the basic, simple and effective tool for reliable re-sugaring.
  

Practical tip: always carry several glucose sticks with you. A single dose may be enough, but some prolonged hypoglycemic episodes require additional intake.