1. What is Glucose Infusion Rate (GIR)?

The Glucose Infusion Rate (GIR) is a calculation used in neonatal and pediatric care to determine the rate at which glucose is being administered to a patient, expressed in mg/kg/min. It helps clinicians ensure appropriate glucose delivery for metabolic needs.

2. How Does the Calculator Work?

The calculator uses the GIR formula:

Where:

• Infusion Rate — The rate of IV fluid administration (mL/hr)
• Dextrose Concentration — The percentage of dextrose in the IV solution (g/dL)
• Weight — The patient's weight in kilograms (kg)
• 1000 — Conversion factor from grams to milligrams
• 60 — Conversion factor from hours to minutes
• 100 — Conversion factor from dL to mL

Explanation: The equation converts all units to arrive at a standardized glucose delivery rate in mg/kg/min.

3. Importance of GIR Calculation

Details: Accurate GIR calculation is crucial for managing neonatal hypoglycemia, preventing hyperglycemia, and ensuring appropriate nutritional support in critically ill pediatric patients.

4. Using the Calculator

Tips: Enter the IV infusion rate in mL/hr, dextrose concentration in g/dL (e.g., 10 for D10W), and patient weight in kg. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical GIR range for neonates?
A: Term neonates typically require 4-8 mg/kg/min, while preterm infants may need 6-10 mg/kg/min initially.

Q2: How does GIR relate to D10W, D5W etc.?
A: The "D" number indicates dextrose concentration in g/dL (e.g., D10W is 10 g/dL dextrose in water).

Q3: When is GIR monitoring most important?
A: Critical during neonatal transition, in very low birth weight infants, and when adjusting TPN or IV fluids.

Q4: Can GIR be too high?
A: Yes, excessive GIR (>12-15 mg/kg/min) may cause hyperglycemia, osmotic diuresis, or hepatic steatosis.

Q5: How often should GIR be recalculated?
A: With each change in infusion rate, dextrose concentration, or significant weight change (daily in growing neonates).