Insulin Regimen Adjustment for Severely Uncontrolled Type 2 Diabetes

Introduction to Insulin Adjustment

The American Diabetes Association recommends immediately increasing insulin glargine to 40 units at bedtime and adding 4 units of rapid-acting insulin before each of the three largest meals for patients with severely uncontrolled type 2 diabetes 1, 2, 3

The American Diabetes Association suggests increasing glargine by 4 units every 3 days if fasting glucose is 180 mg/dL or higher 1, 2
The American Diabetes Association recommends increasing glargine by 2 units every 3 days if fasting glucose is between 140-179 mg/dL 1, 2
The target fasting glucose is 80-130 mg/dL, according to the American Diabetes Association 1, 2
If hypoglycemia occurs without clear cause, the American Diabetes Association advises reducing the dose by 10-20% immediately 1, 2

The American Diabetes Association recommends starting with 4 units of rapid-acting insulin before each of the three largest meals 1, 2, 3
The American Diabetes Association suggests increasing each mealtime dose by 1-2 units every 3 days based on 2-hour postprandial glucose readings 1, 2, 3
The target postprandial glucose is less than 180 mg/dL, according to the American Diabetes Association 2, 3

The American Diabetes Association recommends stopping escalation of basal insulin when the dose exceeds 0.5 units/kg/day (approximately 35-50 units for most adults) 1, 2

The American Diabetes Association advises ensuring patients remain on metformin unless contraindicated, as it should continue even when intensifying insulin therapy 1, 2

The American Diabetes Association recommends daily fasting blood glucose monitoring during titration 1, 2, 3
The American Diabetes Association suggests pre-meal and 2-hour postprandial glucose checks to guide prandial insulin adjustments 2, 3
The American Diabetes Association recommends reassessing A1c in 3 months 2, 3
The expected A1c reduction with this regimen is approximately 7.5-8.5%, according to the American Diabetes Association 2, 3

The American Diabetes Association suggests considering adding a GLP-1 receptor agonist (such as semaglutide or dulaglutide) to the basal insulin regimen before adding prandial insulin 1

The American Diabetes Association recommends teaching patients proper injection technique and site rotation 2, 3
The American Diabetes Association advises educating patients on hypoglycemia recognition and treatment 2, 3
The American Diabetes Association suggests teaching patients self-monitoring blood glucose technique with clear targets 2, 3
The American Diabetes Association recommends informing patients that rapid-acting insulin must be given 0-15 minutes before meals, not after eating 2

The expected total daily insulin requirement for a patient with an A1c of 11.3% is approximately 0.6-1.0 units/kg/day, according to the American Diabetes Association 2, 3

The American Diabetes Association advises against continuing to increase glargine beyond 40-50 units without adding prandial insulin 1, 2