What is the role of insulin and glucose infusion during labor of women gestational diabetes mellitus (GDM)?

Updated: Apr 29, 2020
  • Author: Thomas R Moore, MD; Chief Editor: George T Griffing, MD  more...
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Maintenance of intrapartum metabolic homeostasis optimizes postnatal infant transition by reducing neonatal hyperinsulinemia and subsequent hypoglycemia. The use of a combined insulin and glucose infusion during labor to maintain maternal blood sugars in a narrow range (80-110 mg/dL) is a common and clinically efficient practice. Typical infusion rates are 5% dextrose in Ringer lactate solution at 100 mL/h and regular insulin at 0.5-1.0 U/h. Capillary blood sugar levels are monitored hourly in these patients.

For patients with diet-controlled gestational diabetes mellitus or mild type 2 diabetes, avoiding dextrose in intravenous fluids normally maintains excellent blood glucose control. After 1-2 hours of monitoring, no further assessments of capillary blood sugar typically are necessary.

For patients with diet-controlled gestational diabetes, myoinositol improves insulin resistance and increased adiponectin levels. [47]

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