When assessing a client's mouth, which finding requires immediate follow-up by the nurse?

Choice A reason: Gingival inflammation may indicate gingivitis or periodontal disease, which requires dental follow-up but is not immediately life-threatening. Choice B reason: Buccal mucosa ulceration may be due to trauma, aphthous ulcers, or infection. It warrants evaluation but not urgent intervention unless severe. Choice C reason: White, curd-like lesions are consistent with oral candidiasis, which is treatable and not immediately dangerous unless in immunocompromised clients. Choice D reason: Fruity breath odor is a hallmark sign of diabetic ketoacidosis (DKA), a potentially life-threatening emergency. It requires immediate medical intervention.