Test Your Knowledge Answer #313

The correct answer is 4. 8u of Novolog (4) 8u of Novolog.

• Correction Factor 1 unit will lower BG 30 mg/dl
• Correction Goal Pre- Meal Goal 120 mg/dl
• Carb Ratio 1unit will cover 15 carbs

So if the patient’s pre lunch reading is 270 mg/dl and she is going to eat 90 carbs what dose of Novolog would they need?

• Dose for Correction: 5u
• Dose for Carbohydrates: 6u
• Total Dose of Novolog: 11u

But since she took a correction 2 hours earlier, then according to most studies, the on board insulin still has 44% still working and must be accounted for or she will increase her risk for hypoglycemia, so we must deduct 44% of her correct dosage. The correct dosage without considering the onboard insulin is 11u x .44 = 3.08 units.
11u – 3u = 8units of novolog.

Studies have shown that:

• After 1 hour 75% of bolus remaining
• After 2 hours 44% of bolus remaining
• After 3 hours 22% of bolus remaining

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