A nurse is obtaining informed consent for an adolescent who is scheduled for a cardiac catheterization. The adolescent's guardian states, "I don't understand why they need to do this procedure." Which of the following actions should the nurse take?

A. While witnessing the signature is part of the process, addressing the guardian's lack of understanding is more important at this point. B. The provider who will perform the procedure is best equipped to explain the medical necessity of the cardiac catheterization to the guardian. They can address the guardian's concerns and ensure informed consent. C. While the anesthesiologist is part of the care team, they may not be as knowledgeable about the specific reasons for the procedure as the performing provider. D. Nurses should not provide medical diagnoses or explanations for procedures. This is the role of the healthcare provider.