A newly licensed nurse working at an HIV clinic is reviewing the responsibilities of her position at the clinic. Which of the following tasks should the nurse identify as tertiary prevention?

A. Providing clients with information about the benefits of exercise: This is an example of primary prevention, aimed at promoting general health and preventing illness before it occurs, not managing an existing condition like HIV. B. Using an electronic messaging system to remind clients when to take medications: This represents tertiary prevention, which focuses on managing chronic illness to prevent complications and improve quality of life. Medication adherence helps control HIV progression and maintain health. C. Helping clients understand health screenings covered by their insurance plans: This is a secondary prevention activity, aimed at early detection of disease through screening, rather than managing an existing diagnosis. D. Educating clients about contraindications to specific immunizations: This aligns with primary prevention, as it relates to preventing illness through safe vaccination practices, not managing or treating an existing chronic disease.