The nurse is planning to administer medications to a new client.What is the nurse's first responsibility regarding the administration of these medications?

A) Be certain the medications are given within 15 minutes of the time they are scheduled
B) Know what the intended effects are for this client
C) Assess the client's knowledge of the action of the medications
D) Document the administration accurately

Before administering medications to a new client, the nurse's first responsibility is to know what the intended effects are for the client. This helps ensure the medication is appropriate for the client's condition and that the nurse can monitor for any expected outcomes or adverse effects. The other choices are also important responsibilities of the nurse, but knowing the intended effects of the medication comes first.