The nurse is developing a care plan for a client with Hodgkin's lymphoma undergoing chemotherapy treatment. Which nursing intervention is most important to prevent infection in this immunocompromised client?

Strict hand hygiene is the most fundamental and effective intervention to prevent infection in immunocompromised clients, as it removes transient microorganisms. Other options are less critical or not universally applicable.

Understanding the Rationale: Infection Prevention in Immunocompromised Clients

For a client with Hodgkin's lymphoma undergoing chemotherapy, the most critical nursing intervention to prevent infection is implementing strict hand hygiene protocols for all staff and visitors. Chemotherapy induces myelosuppression, leading to profound neutropenia, which is the single most important risk factor for infection. While the disease itself impairs cellular immunity, it is the treatment-related depletion of neutrophils that creates an immediate and severe vulnerability to pathogens. The primary route of transmission for many of these pathogens in a healthcare setting is via the contaminated hands of healthcare workers and visitors. Therefore, consistent and meticulous hand hygiene serves as the most effective, evidence-based, and universally applicable barrier to break the chain of infection.

Deep Dive into the Options

The rationale for selecting hand hygiene over the other options is rooted in the principles of infection control and the specific vulnerabilities of a neutropenic patient.

- Option 1: Encourage fresh fruits and vegetables. This intervention is contraindicated. The traditional "neutropenic diet," which restricts fresh, uncooked produce, was historically used to limit the introduction of bacteria from food. Although recent research, such as a 2025 randomized controlled trial in hematopoietic stem cell transplant patients, suggests a liberalized diet does not improve caloric intake or reduce weight loss compared to a neutropenic diet, the study does not conclude that fresh produce is safe for infection prevention ^[1]. The trial focused on nutritional outcomes, not infection rates, and the restrictive nature of the neutropenic diet remains a standard precaution in many institutions to minimize potential pathogen exposure from sources like unpeeled raw fruits. For the NCLEX, the priority is to avoid introducing potential bacterial sources to a severely neutropenic client.

- Option 3: Provide a private room with positive air pressure. This is a protective environment intervention, but it is specifically indicated for clients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) with severe and prolonged neutropenia, not as a first-line standard for all patients with Hodgkin's lymphoma on chemotherapy. Positive pressure rooms are designed to protect against airborne fungal spores, particularly Aspergillus. While a private room is beneficial, the most impactful and universally necessary measure for every client interaction remains hand hygiene. The need for optimized infection prevention practices is highlighted by research showing that immunocompromised cancer patients are highly susceptible to infections, and staff knowledge and practice of infection control are critical yet underexplored in some departments .

- Option 4: Administer prophylactic antibiotics. This is a dependent nursing function requiring a physician's order and is not a blanket intervention for all neutropenic clients. Prophylactic antimicrobials, including antifungals, are used judiciously based on specific protocols, the degree and anticipated duration of neutropenia, and local resistance patterns. An interdisciplinary approach is crucial to optimize their use and prevent antimicrobial resistance, as highlighted in a study on antifungal stewardship in a hematology unit . The nurse's independent and most immediate role is to prevent the introduction of pathogens through hand hygiene, thereby reducing the need for these medications.

Clinical Application and NCLEX Focus

The NCLEX tests your ability to prioritize. In a severely immunocompromised client, the hierarchy of infection prevention starts with the simplest, most effective measure that the nurse can independently perform: hand hygiene. This action directly interrupts the contact transmission route, which is responsible for the majority of healthcare-associated infections. While environmental controls and dietary restrictions are components of a comprehensive protective strategy, they are secondary to the fundamental practice of hand antisepsis before every patient contact. A client with a hematologic malignancy like Hodgkin's lymphoma is at high risk for invasive infections due to immunosuppression from both the disease and intensive treatments, making rigorous infection prevention and control practices non-negotiable .