A nurse is caring for a client newly diagnosed with type 1 diabetes. The nurse is educating the client about self- administration of insulin in the home setting. The nurse should teach the client to do what action?

Inject at a 40-degree angle.

Avoid using the same injection site more than once in 2 to 3 weeks.

Cleanse the injection site thoroughly with alcohol prior to injecting.

Avoid mixing more than one type of insulin in a syringe.