NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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How should mealtime insulin be adjusted if preprandial BG is consistently high before lunch?

  1. Increase breakfast insulin

  2. Decrease lunch insulin

  3. Increase lunch insulin

  4. Decrease breakfast insulin

The correct answer is: Increase breakfast insulin

Mealtime insulin should be increased at breakfast if preprandial BG (blood glucose) is consistently high before lunch. This is because breakfast insulin affects the body's insulin resistance and sensitivity throughout the day, not just during breakfast. Decreasing lunch insulin (option B) may not be enough to effectively lower preprandial BG. Similarly, decreasing breakfast insulin (option D) may not address the issue of consistently high preprandial BG levels. Increasing lunch insulin (option C) may not be necessary and could lead to low blood sugar levels.

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