The ISF (also called Correction Factor) tells you how many mg/dL your blood sugar drops with 1 unit of rapid-acting insulin. Used to correct high blood sugars between or before meals.
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mg/dL drop per 1 unit of insulin (ISF)
Step 2: Your Sliding Scale
Based on your ISF and target glucose, here is your personalized correction scale. You can adjust the target, ISF, and dose increments below — the scale updates automatically.
💡 Doses rounded to 1-unit increments (standard adult pen). Use "half-unit pen" mode above for pediatric patients or high insulin sensitivity. Give 0 units if at or below target. Always check active insulin (IOB) before correcting.
How to use this scale:
1. Check blood sugar before a meal or as directed by your provider.
2. Find your current blood sugar range in the table.
3. Give the listed correction dose in addition to your meal bolus (calculated with your ICR).
4. Wait 2–4 hours before giving another correction dose to avoid stacking.
⚕️ Important: This sliding scale is a tool for education and initial estimation only. Insulin doses must always be individualized and reviewed by your diabetes care team. Insulin requirements vary by time of day, activity, illness, and stress. Never adjust your insulin regimen without discussing with your provider. If you are unsure, call our office at 832-968-7003.
