A nurse is caring for a female client who requests a contraceptive diaphragm. Which of the following actions should the nurse take first?

A. Supervising return demonstration is important but should occur after assessing the client's understanding of how to use the diaphragm. B. Documenting the client's level of understanding is part of the assessment process but not the first step. C. Teaching the client how to insert the diaphragm is important, but it should be done after determining the client’s baseline knowledge. D. Determining the client’s knowledge ensures that teaching is focused on areas where the client may need additional information.