What is the initial insulin infusion rate after fluids are started?

What is the initial insulin infusion rate after fluids are started?

• A. 0.01 units/kg/hour IV
• B. 0.1 units/kg/hour IV
• C. 1 unit/kg/hour IV
• D. 0.5 units/kg/hour IV

Answer: (B)

When fluids have been started to restore perfusion, the initial insulin infusion should be 0.1 U/kg per hour IV. This dose provides a steady, controlled reduction in blood glucose and suppression of ketogenesis without causing abrupt shifts in osmolarity that could lead to cerebral edema or hypoglycemia. It’s safe and effective across ages because it targets the metabolic crisis (hyperglycemia, acidosis, and ketone production) while allowing careful monitoring and correction of electrolytes (notably potassium, which insulin can lower by driving potassium into cells). If potassium is very low, insulin may be held until potassium is corrected, and glucose-containing fluids are used as needed to prevent hypoglycemia as glucose falls.

When fluids have been started to restore perfusion, the initial insulin infusion should be 0.1 U/kg per hour IV. This dose provides a steady, controlled reduction in blood glucose and suppression of ketogenesis without causing abrupt shifts in osmolarity that could lead to cerebral edema or hypoglycemia. It’s safe and effective across ages because it targets the metabolic crisis (hyperglycemia, acidosis, and ketone production) while allowing careful monitoring and correction of electrolytes (notably potassium, which insulin can lower by driving potassium into cells). If potassium is very low, insulin may be held until potassium is corrected, and glucose-containing fluids are used as needed to prevent hypoglycemia as glucose falls.