Glucose Infusion Rate (GIR) Calculator
Calculates glucose infusion rate in mg/kg/min from IV infusion parameters. Critical for neonatal and paediatric care, and for insulin infusion management in adults. Confirms adequate glucose delivery.
Score interpretation
GIR <4 mg/kg/min — below minimum for neonatal hypoglycaemia prevention
→ Increase dextrose concentration or infusion rate; recheck blood glucose within 30–60 min; consult neonatology if persistent hypoglycaemia; target GIR 4–6 mg/kg/min for neonates
GIR 4–8 mg/kg/min — appropriate range for neonates
→ Continue current infusion; monitor blood glucose 4-hourly (or per protocol); adjust based on clinical response and glucose values
GIR 8–12 mg/kg/min — above standard target; monitor for hyperglycaemia
→ Monitor blood glucose frequently; assess insulin requirements; in TPN protocols this may be appropriate for hypermetabolic states; ensure infusion accuracy
GIR >12 mg/kg/min — very high glucose load
→ Risk of hyperglycaemia and liver steatosis; frequent blood glucose monitoring; consider insulin infusion; review total caloric intake; consult dietetics/nutrition team
Interpretation bands for the GIR. Apply clinical judgement and local guidance.
References
- Adamkin DH. Neonatal hypoglycemia. Curr Opin Pediatr. 2016;28(2):150–155.
Related
Curated clinical cross-links plus same-class fallbacks.
- Dextrose 10% IV · IV glucose solution (hypoglycaemia treatment)
- Insulin (IV Infusion — ICU Glucose Control) · Insulin — ICU Glucose Management
- Dextrose 50% (Glucose 50%) · Glucose Supplement
- Glucose · Carbohydrate / hypoglycaemia treatment
- Potassium chloride with glucose · IV fluid (potassium + dextrose)
- Sodium chloride with glucose · IV fluid (saline + dextrose)
- Diabetic Ketoacidosis (DKA) · JBDS 2013 / Joint British Diabetes Societies; NICE NG17
- Adult Hypoglycaemia (Treated Diabetes) · JBDS-IP (2023): Hospital Management of Hypoglycaemia
- Adrenal Crisis · Society for Endocrinology Emergency Guidance (2024)
- Type 2 Diabetes Management · NICE NG28 2022
- Hyperthyroidism Management · BTA / ETA 2018
- Adrenal Insufficiency · Society of Endocrinology / ESE 2016
Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.