Management of Basal Insulin with Elevated Blood Sugar

Rationale for Administering Basal Insulin

The American Academy of Family Physicians recommends administering the scheduled dose of basal insulin, such as Lantus, when the blood sugar level is 127 mg/dL, as this level is not considered hypoglycemic and maintaining consistent basal insulin dosing is important for glycemic control 1, 2
Maintaining consistent basal insulin administration is crucial for stable blood glucose control between meals and overnight, and skipping doses can lead to unstable blood glucose levels and potentially hyperglycemia 2

The American Academy of Family Physicians suggests that hypoglycemia risk is a concern with insulin therapy, but withholding Lantus is only recommended when blood glucose falls below 100 mg/dL 1
At 127 mg/dL, the patient is not at immediate risk of hypoglycemia that would warrant holding the dose, and if hypoglycemia (<100 mg/dL) does occur, the patient should eat a small snack rather than skipping the insulin dose 1

For elderly patients, a more conservative approach to glycemic targets may be appropriate, but a blood glucose of 127 mg/dL is still within a safe range to administer the scheduled Lantus dose, according to the American Diabetes Association 3
In perioperative settings, basal insulin is typically continued to maintain glycemic control, with the dose given as scheduled when blood glucose is above 100 mg/dL, as recommended by the American Society of Anesthesiologists 4, 5

The American Diabetes Association recommends continuing to monitor blood glucose according to the patient's usual schedule after administering Lantus, and being aware of potential inaccuracies in blood glucose readings from point-of-care testing 2, 6