Administration of Lispro Insulin

In this pharmacology question, we need to identify the correct nursing action when administering lispro insulin to a client with type one diabetes.

Let's start by identifying the key characteristics of Lispro insulin. Lispro is classified as a rapid-acting insulin.

Because it is rapid-acting, it has a very quick onset of action, typically within fifteen to thirty minutes.

It also reaches its peak strength in about thirty minutes to two and a half hours, and its effects last for about three to six hours.

Now, let's evaluate the options based on these properties. The first option suggests assessing for hypoglycemia four hours after the injection.

Since the peak of lispro occurs much earlier, between thirty minutes and two and a half hours, that is when the risk for hypoglycemia is highest. Monitoring at four hours is too late.

The second option says to inject the insulin fifteen minutes before a meal.