A nurse is caring for a 5-year-old child with HIV infection who has developed oral candidiasis. The child's CD4+ count is 200 cells/mm³. Which nursing intervention is the highest priority?

Administering antifungal medication is the highest priority to treat active oral candidiasis and prevent systemic spread in a child with severe immunocompromise (CD4+ 200 cells/mm³). Other interventions like fluid intake, soft foods, or oral hygiene are supportive but secondary.

Clinical Context and Priority Setting

This question presents a 5-year-old child with HIV infection, oral candidiasis, and a critically low CD4+ count of 200 cells/mm³. In pediatric patients, a CD4+ count below 500 cells/mm³ in children aged 1–5 years indicates severe immunosuppression ^[1]. This level of immune compromise means the child has minimal endogenous defense against fungal overgrowth, making pharmacologic intervention the cornerstone of management.

Why Antifungal Administration Is the Highest Priority

The systematic review by Carvalho et al. confirms that Candida species, particularly C. albicans, are the predominant cause of oral candidiasis in high-risk populations, and that infections caused by non-albicans Candida (NAC) species are increasing ^[1]. In an HIV-positive child with a CD4+ count of only 200 cells/mm³, the fungal infection will not resolve without targeted antifungal therapy. The case report by Filippatos et al. further illustrates this principle: a child with profound CD4+ lymphopenia and severe oral candidiasis caused by Candida parapsilosis showed rapid clinical improvement only after intravenous fluconazole was initiated ^[2]. This demonstrates that when the immune system is severely depleted, source control through antimicrobial therapy takes precedence over supportive measures.

Applying Maslow’s Hierarchy and the ABC Framework

In NCLEX-RN priority-setting, physiological needs and direct treatment of the underlying pathology rank above comfort or teaching interventions. Administering the prescribed antifungal medication directly addresses the infectious process that, if left unchecked in a severely immunocompromised child, can progress to systemic candidiasis—a life-threatening complication. Monitoring for therapeutic response allows the nurse to detect treatment failure early, which is especially critical given the rising prevalence of NAC species that may exhibit variable antifungal susceptibility patterns ^[1].

Why the Other Options Are Lower Priority

Encouraging fluid intake (Option 2) and providing soft, bland foods (Option 3) are important comfort and hydration measures, but they do not treat the infection itself. These supportive interventions can be implemented concurrently or after medication administration. Teaching the family about oral hygiene (Option 4) is a valuable long-term prevention strategy, but it is not the immediate priority when an active, symptomatic infection is present in a child with severe immunosuppression. The NCLEX-RN expects the nurse to recognize that pharmacologic treatment of the active infection must occur before preventive education or symptom management alone.