# A nurse is caring for a patient receiving chemotherapy who develops severe neutropenia (ANC < 500/mm³). To implement immediate protective measures, which nursing intervention should be the HIGHEST priority to ensure patient safety?

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## 문제

A nurse is caring for a patient receiving chemotherapy who develops severe neutropenia (ANC < 500/mm³). To implement immediate protective measures, which nursing intervention should be the HIGHEST priority to ensure patient safety?

## 보기

1. Place the patient in a private room and implement strict neutropenic precautions including hand hygiene **✔ 정답**
2. Administer prescribed antibiotics prophylactically and monitor for signs of infection every 4 hours
3. Encourage increased fluid intake and provide nutritional supplements to boost immune system function
4. Educate the patient about avoiding crowds and maintaining good personal hygiene practices

**정답: 1**

## 해설

Severe neutropenia with ANC < 500/mm³ represents a medical emergency requiring immediate implementation of neutropenic precautions to prevent life-threatening infections.

Severe neutropenia (absolute neutrophil count < 500/mm³) is one of the most important complications of chemotherapy, creating an immediately life-threatening situation that requires urgent nursing intervention. Neutrophils are the body's primary defense system against bacterial infections, and when their count falls below 500/mm³, the patient becomes extremely vulnerable to opportunistic infections, which can rapidly progress to sepsis and death.

The highest priority nursing intervention is implementing strict neutropenic precautions. This includes isolating the patient in a single room to minimize pathogen exposure, enforcing strict hand hygiene protocols for all healthcare staff and visitors, mandating mask wearing, and restricting entry for visitors showing signs of illness. These environmental controls create a protective barrier that significantly reduces the patient's exposure to infectious sources.

The pathophysiology of severe neutropenia involves chemotherapy drugs destroying rapidly dividing cells in the bone marrow, leading to decreased neutrophil production. Without adequate neutrophils, the patient's immune system cannot mount an effective response even against normally harmless bacteria. In this immunocompromised state, prevention becomes the core of treatment because treating an infection that has already developed in a neutropenic patient is extremely difficult and often unsuccessful.

From a nursing perspective, implementing neutropenic precautions requires comprehensive environmental management, including proper room ventilation, aseptic technique for all invasive procedures, and careful monitoring of everyone entering the patient's room. Nurses must also educate families about the importance of these precautions and ensure compliance with all protective measures. This intervention directly addresses the immediate safety threat and provides the foundation for all other aspects of care for neutropenic patients.

## 심화 해설

Understanding the Priority

For a patient with severe neutropenia, defined as an absolute neutrophil count (ANC) below 500/mm³, the body's primary defense against bacterial and fungal infections is critically compromised. The highest immediate priority is to create the safest possible environment by controlling the source of potential pathogens. Neutropenic precautions are the cornerstone of clinical management, as highlighted in evidence-based nursing strategies that emphasize strict infection control as the first domain of care [1]. Placing the patient in a private room and enforcing rigorous hand hygiene directly reduces the microbial burden the patient is exposed to, which is the most time-sensitive intervention to prevent life-threatening infections.

Analysis of Options

- **Option 1 (Correct):** Initiating environmental controls with a private room and strict hand hygiene is the foundational, non-invasive intervention that immediately lowers infection risk for a patient with a severely weakened immune system. This aligns with the core principle of infection prevention in neutropenic care [1].

- **Option 2:** While administering prophylactic antibiotics and monitoring for infection are critical components of care, they are secondary to establishing a clean environment. Prophylaxis is a pharmacological measure that addresses potential pathogens after exposure, whereas the priority is to prevent that exposure in the first place. A risk prediction model for febrile neutropenia supports the importance of preventive actions, but the immediate nursing-led action is environmental safety [3].

- **Option 3:** Encouraging fluid intake and providing nutritional supplements are supportive care measures that aid overall health but do not provide immediate protection against the high risk of infection. These interventions have no direct, rapid impact on the patient's current neutropenic state.

- **Option 4:** Patient education on avoiding crowds and hygiene is vital for long-term self-management and has been shown to improve adherence by 42% when using structured, competency-based methods [1]. However, education is a longer-term strategy. The immediate safety of the hospitalized patient depends first on the nurse's direct actions to control the clinical environment.

Connecting to Clinical Outcomes

The rationale for prioritizing environmental controls is strongly supported by evidence showing that structured nursing interventions reduce complication-related morbidity in immunocompromised patients. A study on patients undergoing hematopoietic stem cell transplantation, a procedure causing profound neutropenia, demonstrated that a multifaceted nursing program significantly reduced rates of infection and other complications . The foundation of such a program is the immediate implementation of protective environmental measures. Furthermore, managing the neutropenic patient requires a holistic approach where clinical management with strict infection control is the first and most urgent step, upon which all other interventions—including psychosocial support and targeted therapies—are built [1]. A personalized, multidisciplinary strategy is essential, and for the bedside nurse, the initial and highest priority action is to enforce the strictest possible protective environment to safeguard the patient until their ANC recovers .

References (research sources)

- [1]Optimizing nursing care for neutropenic patients: a holistic perspective on education, support, and clinical management.Research articleXu ZN, Gao LP, Wang XK, Yu XL, Cong Y, Wang PJ. (2025) · DOI: 10.3389/fmed.2025.1633708

- [3]Development and clinical validation of a nursing risk prediction model for chemotherapy-induced febrile neutropenia in patients with cancer.Research articleXie F, Zheng D, Chen N, Zhang J, Wang N, Yi Q, Wang L. (2026) · DOI: 10.3389/fcell.2026.1779406

## 임상 시나리오

Severe Neutropenia: Immediate Safety PriorityManaging a Patient with ANC Below 500/mm³
For a patient with an ANC below 500/mm³, the immune system is critically compromised. The foundational, non-negotiable first step is to control the environment. Immediately place the patient in a private room and initiate strict neutropenic precautions.

The core of these precautions is rigorous hand hygiene for all staff and visitors before entering the room. This directly reduces the microbial burden the patient is exposed to, which is the most time-sensitive intervention to prevent a life-threatening infection.

CautionDo not delay environmental controls for pharmacological interventions. Prophylactic antibiotics and infection monitoring are secondary measures; the immediate priority is preventing pathogen exposure at the source. A private room is essential, not just a curtained space.

## 핵심 개념

- **Severe Neutropenia** — A critically low absolute neutrophil count (ANC), typically below 500 cells/mm³, resulting in a severely compromised immune system and high risk for life-threatening infections.
- **Neutropenic Precautions** — A set of strict infection control measures, including a private room and rigorous hand hygiene, designed to protect patients with very low neutrophil counts from environmental pathogens.
- **Absolute Neutrophil Count (ANC)** — A measure of the actual number of infection-fighting neutrophils in the blood, calculated from the total WBC count and the percentage of bands and segmented neutrophils.

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