A 12-year-old with type 1 diabetes mellitus is preparing to eat lunch. Their meal tray includes: 1 slice of bread = 15 g carbohydrates 1 medium apple = 25 g carbohydrates 1 cup milk = 12 g carbohydrates 1 granola bar = 23 g carbohydrates Their pre-meal blood glucose is 193 g/dL. Insulin parameters are as follows: Target blood glucose: 80-120 mg/dL Insulin-to-carbohydrate ratio: 1 unit of insulin per 15 grams of carbohydrate (1:15) Correction dose of insulin: Pre-meal blood glucose 121-180 mg/dL: 1 unit Pre meal blood glucose 181-200 mg/dL: 2 units What is the total amount of insulin the patient will require?

Calculate the Carbohydrate Coverage Dose Calculate the total amount of carbohydrates in the meal. Bread: 15 g Apple: 25 g Milk: 12 g Granola bar: 23 g Total Carbohydrates = 15 g+25 g+12 g+23 g =75 g Calculate the insulin dose for carbohydrate coverage. The Insulin-to-Carbohydrate ratio is 1 unit per 15 grams (1:15). Carbohydrate dose (units) = Total Carbohydrates (g) / Insulin-to-Carbohydrate ratio (g/unit) = 75 g/15 g/unit =5 units Calculate the Correction Dose Determine the required correction dose based on the pre-meal blood glucose (BG). Pre-meal BG: 193 mg/dL Correction dose parameter: Pre-meal blood glucose 181-200 mg/dL: 2 units Since 193 mg/dL falls within the 181−200 mg/dL range, the correction dose is 2 units. Part 3: Calculate the Total Insulin Dose Calculate the total amount of insulin required. Total insulin = Carbohydrate dose + Correction dose = 5 units+2 units=7 units