Carbohydrates

1 gram of Dextrose = 3.4 kcals
Determine the percent of dextrose needed based on the glucose infusion rate (estimated rate at which the liver oxidizes glucose in mgs CHO/kg/minute.
Begin with a GIR of 5-6 mg/kg/minute.  This is the minimum GIR required to adequately oxygenate cerebral tissue.
Advance GIR by 1-2 mg/kg/day or by 2.5% per day to goal. 
 
 
Goal GIRs
Preterm 10-12 mg/kg/minute
Term 12-14 mg/kg/minute
 
Never exceed a GIR of 17 mg/kg/min
Excessive glucose infusion rates or poorly tolerated GIRs can cause fatty infiltration of the liver, cholestasis, hyperglycemia, hypertriglyceridemia, osmotic diuresis, dehydration, respiratory distress, and metabolic abnormalities from hyperosmotic fluids.
Maximum concentration of glucose regardless of volume depends on IV access 
 
Maximum Glucose Concentration 
Peripheral Line 12.5% Dextrose
Central Line 20-25% Dextrose
 


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