1. What is Glucose Infusion Rate (GIR)?

Definition: GIR measures how quickly glucose is being administered to a patient, expressed in milligrams per kilogram per minute (mg/kg/min).

Purpose: It helps healthcare providers ensure appropriate glucose administration, especially in neonatal and pediatric care.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( GIR \) — Glucose infusion rate (mg/kg/min)
• \( C \) — Glucose concentration (mg/mL)
• \( R \) — Infusion rate (mL/h)
• \( W \) — Patient weight (kilograms)

Explanation: The formula converts the total glucose infusion (concentration × rate) to a weight-based rate per minute.

3. Importance of GIR Calculation

Details: Proper GIR calculation prevents hypoglycemia or hyperglycemia, especially critical in neonatal intensive care.

4. Using the Calculator

Tips: Enter the glucose concentration in mg/mL, infusion rate in mL/h, and patient weight in kg. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical GIR range for neonates?
A: Usually 4-8 mg/kg/min, but varies based on clinical condition and age.

Q2: How do I convert % glucose to mg/mL?
A: Multiply percentage by 10 (e.g., 10% glucose = 100 mg/mL).

Q3: Why is weight multiplied by 6?
A: This converts hours to minutes (60 min) and accounts for the per kg measurement (60 ÷ 10 = 6).

Q4: When would I need to calculate GIR?
A: When administering parenteral nutrition or dextrose solutions, especially in pediatric patients.

Q5: What are risks of incorrect GIR?
A: Too high can cause hyperglycemia; too low can cause hypoglycemia - both dangerous in neonates.