Insulin Glargine Duration

In this problem, we need to determine the correct instruction a nurse should provide regarding the duration of insulin glargine for a client with diabetes.

Let's start by identifying the type of insulin we are dealing with. Insulin glargine, commonly known by the brand name Lantus, is a long-acting insulin.

Unlike rapid-acting or short-acting insulins, long-acting insulins are designed to provide a steady level of insulin for a very long period.

The key characteristic of insulin glargine is that it has no peak and maintains a relatively constant concentration for a full day.

Now, let's look at our options to see which matches the profile of a long-acting insulin.