A 7-year-old child is admitted to the pediatric unit with a confirmed diagnosis of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) skin and soft tissue infection. Which nursing intervention should be the priority?

Contact precautions and hand hygiene are the priority to prevent transmission of CA-MRSA in healthcare settings. Other options are incorrect as methicillin is ineffective against MRSA, topical antibiotics are insufficient for systemic infection, and fluid intake is supportive but not immediate.

Understanding the Priority: Infection Control in CA-MRSA

For a child admitted with a confirmed community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infection presenting with purulent lesions, fever, and leukocytosis, the immediate priority is to prevent the organism's spread within the healthcare setting. MRSA is a significant global concern due to its virulence and multidrug resistance, making containment the foundational step in safe, effective care ^[2]. While treating the infection and managing symptoms are important, they are secondary to the safety intervention that protects other vulnerable patients and healthcare workers.

Why Contact Precautions Are the Priority

Contact precautions are the cornerstone of infection prevention for MRSA in pediatric healthcare settings. The primary mode of MRSA transmission is via direct contact with an infected wound or indirect contact with contaminated surfaces and hands of healthcare personnel. Implementing these precautions immediately upon admission creates a barrier that physically interrupts this chain of transmission ^[1]. This involves placing the child in a private room, using dedicated patient-care equipment, and strictly adhering to gown and glove use for any interaction with the patient or their immediate environment. The rationale is not merely procedural; it is a direct response to the organism's ability to overcome immune challenges and its potential to cause serious, difficult-to-treat infections in others ^[2].

Analyzing the Incorrect Options

- Administering methicillin: This is a critical knowledge point for the NCLEX-RN. MRSA is, by definition, resistant to beta-lactam antibiotics, including methicillin. Administering methicillin would be ineffective and therapeutically incorrect. First-line treatments for serious MRSA infections, as noted in the literature, include antibiotics such as vancomycin, linezolid, or daptomycin, not methicillin ^[2].
- Applying topical antibiotic ointment: While topical treatments like mupirocin or povidone-iodine may be part of a decolonization protocol, this is not the priority nursing intervention upon admission. Decolonization strategies are typically applied to the patient to reduce their own bacterial burden over a period of days or weeks, often involving protocols with chlorhexidine gluconate (CHG) bathing and intranasal ointments . This intervention addresses the source of infection but does not immediately prevent the spread of the organism to others, which is the most urgent safety concern.
- Encouraging fluid intake: Managing fever and preventing dehydration are standard supportive care measures for any febrile child. A temperature of 101.8°F (38.8°C) does increase insensible fluid loss. However, this is a general supportive measure and does not take precedence over the specific, evidence-based safety intervention required to contain a multidrug-resistant organism .

Clinical Application and Safety Rationale

The decision to prioritize contact precautions is supported by the understanding that while the duration of isolation is a subject of ongoing study, the initial implementation of barriers is non-negotiable for preventing healthcare-associated transmission . The potential for unintended psychosocial effects on a pediatric patient under contact precautions is a recognized concern, but this does not negate the immediate need for isolation; rather, it informs how care is delivered once precautions are in place, emphasizing the need to provide developmentally appropriate activities within the confines of the safety measures ^[1]. The nurse's priority is to first establish a safe environment by implementing contact precautions and ensuring meticulous hand hygiene, which is the single most effective measure to prevent cross-contamination.