A nurse is planning to discharge a client who has diabetes mellitus and a new prescription for insulin. Which of the following actions should the nurse plan to complete first?

The correct answer is D: Determine whether the client can afford the insulin administration supplies. This should be completed first because even if the client has a prescription for insulin, if they cannot afford the supplies needed for administration, it will impact their ability to manage their diabetes effectively. Ensuring affordability is crucial for medication adherence and overall health outcomes.

Choice A is incorrect because making a copy of the medication reconciliation form is important but not the priority in this scenario.

Choice B is incorrect as obtaining printed information about insulin self-administration is important but can be done after ensuring the client can afford the supplies.

Choice C is incorrect as providing the client with a contact number for a diabetes education specialist is helpful but not as urgent as assessing affordability.

In summary, determining affordability of insulin supplies is the first step to ensure the client can effectively manage their diabetes.