1. What is Insulin Dose Calculation?

The insulin dose calculation helps people with diabetes determine how much rapid-acting insulin they need to cover both their current blood glucose level and the carbohydrates they plan to eat. This method combines correction insulin (for high blood sugar) and meal insulin (for carbohydrates).

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Blood Glucose} \) — Current blood glucose level (mg/dL)
• \( \text{Target Glucose} \) — Desired blood glucose level (mg/dL)
• \( \text{Correction Factor} \) — How much 1 unit of insulin lowers blood glucose (mg/dL/unit)
• \( \text{Carbohydrates} \) — Grams of carbohydrates to be consumed
• \( \text{Carb Ratio} \) — Grams of carbohydrates covered by 1 unit of insulin (g/unit)

Explanation: The formula calculates two components - correction dose (for current high blood sugar) and meal dose (for upcoming carbohydrates) - then sums them for the total insulin dose.

3. Importance of Accurate Insulin Dosing

Details: Proper insulin dosing is crucial for maintaining optimal blood glucose levels, preventing both hyperglycemia (high blood sugar) and hypoglycemia (low blood sugar). Accurate dosing improves diabetes management and reduces complications.

4. Using the Calculator

Tips:

• Enter current blood glucose reading from your meter
• Use your personal target glucose level (typically 80-130 mg/dL)
• Input your individual correction factor (determined with your healthcare provider)
• Estimate carbohydrates in your planned meal
• Use your prescribed insulin-to-carb ratio

5. Frequently Asked Questions (FAQ)

Q1: What if my blood glucose is below target?
A: The correction dose will be negative, meaning you might need less insulin for the carbs or even need to eat additional carbs.

Q2: How do I know my correction factor?
A: This is individualized and should be determined with your healthcare provider. A common starting point is the "1800 rule" (1800/TDD = estimated correction factor).

Q3: What's a typical carb ratio?
A: Carb ratios vary widely (typically 5-15 grams per unit). Your ratio should be determined with your healthcare team based on your insulin sensitivity.

Q4: Should I round the dose?
A: Most insulin pens allow half-unit dosing. Round to the nearest 0.5 units unless otherwise advised by your healthcare provider.

Q5: When shouldn't I use this calculation?
A: Don't use when ill (may need more insulin), after exercise (may need less), or if using regular insulin (different timing). Always consult your healthcare provider for major changes.