The nurse teaches the family of an AIDS client about managing symptomatic illness by preventing deteriorating conditions, such as diarrhea, skin breakdown, and inadequate nutrition. Which of the following best describes the action taken by the nurse?

A. Secondary prevention: This involves early detection and prompt treatment, such as screening tests- not managing chronic symptoms. B. Primary prevention: Aims to prevent disease before it occurs (e.g., education, vaccination). The client here already has AIDS. C. Tertiary prevention: This level of prevention focuses on managing disease complications, preventing deterioration, and improving quality of life — which matches the nurse’s interventions. D. Primary health care: This refers to a broad entry-level care system, not a level of prevention.