A nurse is caring for a client who has peptic ulcer disease and is scheduled to undergo an esophagogastroduodenoscopy. Which of the following actions should the nurse take prior to the procedure?

Informed consent is a critical step before any invasive procedure, including an EGD. The nurse should confirm that the client has received the necessary information about the procedure, its risks and benefits, and has given their consent voluntarily. This ensures that the client understands the procedure and its implications, making it an essential part of their rights and safety.