Hyperglycemia is highly prevalent in the acute-care setting and is associated with an increased risk of morbidity and mortality. Evidence suggests that glycemic control in this population is suboptimal, due in part to continued use of nonphysiologic sliding-scale insulin strategies without scheduled basal insulin doses or prandial insulin with concomitant correction doses. Although the ineffectiveness and risks of sliding-scale insulin regimens have been criticized for decades, sliding-scale insulin is still the most commonly prescribed subcutaneous insulin regimen among inpatients. Improving inpatient management requires the use of scheduled basal-bolus insulin therapy that includes basal insulin, nutritional insulin, and supplemental, or correctional, insulin. Insulin analogs are the preferred insulins, as they provide a more physiologic action than human insulin regimens, are associated with a lower risk of hypoglycemia, and are more convenient to administer than human insulins. Standardized insulin protocols and subcutaneous insulin order sets are critical components of effective inpatient glycemic control. Although preliminary data have demonstrated that inpatient diabetes management programs involving basal-bolus insulin therapy are effective and well tolerated, more research is needed.
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