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The insulin regimen of a Type 2 diabetic presenting for surgery had been changed recently from a 70/30 mixture of insulin aspart protamine and aspart to insulin detemir and insulin glulisine. Preoperative instructions were to take the usual dose of basal, but none of the short-acting insulin. On the morning of surgery, the patient's blood glucose was low and remained so despite i.v. dextrose administration. A review of the basal insulin dose revealed that it had been inappropriately increased to control elevated postprandial glucose. Doses of basal insulin in excess of basal requirements will cause hypoglycemia in the fasting state.

Original publication

DOI

10.1213/ane.0b013e3181a2a777

Type

Journal article

Journal

Anesth Analg

Publication Date

06/2009

Volume

108

Pages

1836 - 1838

Keywords

Adult, Blood Glucose, Body Mass Index, Diabetes Mellitus, Type 2, Fasting, Female, Gynecologic Surgical Procedures, Humans, Hypoglycemia, Hypoglycemic Agents, Insulin, Insulin Detemir, Insulin, Long-Acting, Preoperative Care