The nurse is preparing to administer 6 units of lispro before breakfast. How many minutes before meals should the nurse administer this type of insulin?

Explanation

• Lispro is a rapid-acting insulin with an onset of 15 minutes and a peak between 30 and 90 minutes.

• Clinical trials demonstrate the optimal time for preprandial administration is 15 minutes so that the medication becomes effective just as the patient begins eating.

• Incorrect: A 30-minute preprandial administration would be used for a regular insulin.

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