# A nurse is caring for a client with bacterial conjunctivitis. Which nursing intervention should be prioritized to prevent transmission of the infection?

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## 문제

A nurse is caring for a client with bacterial conjunctivitis. Which nursing intervention should be prioritized to prevent transmission of the infection?

## 보기

1. Apply warm compresses to both eyes simultaneously
2. Use separate washcloths for each eye and dispose after single use **✔ 정답**
3. Administer antibiotic eye drops to both eyes at the same time
4. Encourage the client to wear sunglasses when outdoors

**정답: 2**

## 해설

Preventing cross-contamination between eyes is the priority to stop transmission of bacterial conjunctivitis. Using separate washcloths for each eye and disposing after single use directly addresses this. Other options like warm compresses or sunglasses do not prevent transmission effectively.

## 심화 해설

Understanding the Priority: Breaking the Chain of Infection

The core of this question lies in the mode of transmission for bacterial conjunctivitis. The pathogen is typically spread through direct contact with infected ocular secretions. A nurse’s priority intervention must therefore target the portal of exit from the reservoir (the infected eye) and interrupt the chain of infection at its most vulnerable mechanical link: contaminated fomites. While comfort measures and pharmacological treatment are essential components of care, they do not immediately address the risk of spreading the infection to the contralateral eye or to other individuals in the clinical environment.

Why Option 2 is the Priority

Using separate washcloths for each eye and disposing of them after a single use directly prevents the mechanical transfer of pathogens. In the context of a quality improvement project focused on ophthalmology infection control, adherence to strict disinfection and hygiene protocols is identified as a critical gap in clinical practice [1]. The study highlighted the necessity of rigorous environmental cleaning and instrument disinfection to prevent cross-contamination [1]. A reusable washcloth acts as a fomite; if the same cloth touches the infected eye and then the non-infected eye, or if it contaminates the nurse’s hands and surrounding surfaces, transmission occurs. Immediate disposal after single use ensures that the concentrated infectious material is safely contained and removed, which is the most effective nursing action to halt transmission.

Clinical Analysis of Other Options

- Option 1 (Apply warm compresses to both eyes simultaneously): This action is contraindicated. Applying a compress to the infected eye and then using the same compress on the non-infected eye creates a direct path for autoinoculation. Even if separate compresses are used, the simultaneous handling of both eyes increases the risk of cross-contamination via the nurse’s gloved or ungloved hands. The goal of infection prevention requires treating the infected site as a separate, isolated field.

- Option 3 (Administer antibiotic eye drops to both eyes at the same time): While antibiotic drops treat the infection, the administration technique is critical. Administering drops to both eyes simultaneously without strict hand hygiene and without separating the droppers risks contaminating the medication bottle and transmitting bacteria from the infected eye to the non-infected eye. The priority intervention is a physical barrier and disposal method, not the medication schedule itself.

- Option 4 (Encourage the client to wear sunglasses when outdoors): Photophobia is a common symptom of conjunctivitis, and sunglasses provide comfort. However, this intervention addresses a symptom rather than the prevention of disease transmission. A pair of sunglasses can also become a contaminated fomite if handled after touching the eyes, but the primary transmission risk remains direct contact with secretions, not airborne or light-based spread.

Integrating Perioperative and Outpatient Nursing Insights

Although the provided literature on cold plasma ablation focuses on a surgical context, it reinforces the critical role of nursing in managing ocular surface integrity and preventing complications . The meticulous assessment of epithelial healing and pain management described in the study parallels the meticulous hygiene required in outpatient conjunctivitis care . In both scenarios, a breakdown in aseptic technique or hygiene can lead to delayed healing or secondary infection. For the bacterial conjunctivitis patient, the single-use, segregated approach to linens and washcloths is the practical application of the same principle of microbial control that underpins successful perioperative outcomes. The nurse acts as a gatekeeper, ensuring that a localized infection does not become a facility-acquired cross-contamination event through the enforcement of evidence-based hygiene protocols [1].References (research sources)

- [1]Improving Adherence to Infection Prevention and Disinfection Protocols Within the Ophthalmology Department: A Two-Cycle Quality Improvement Project (QIP).Research articleBakheet M, Chaudhary A, Al Thubaiti GA, Al Assiri AA. (2026) · DOI: 10.7759/cureus.109333

## 임상 시나리오

Conjunctivitis Infection ControlBreaking Contact Transmission in Clinical Settings
The primary mode of transmission for bacterial conjunctivitis is direct contact with infected ocular secretions. Contaminated objects, or fomites like washcloths and tissues, are a major vector. Use separate, single-use cloths for each eye and dispose of them immediately to prevent cross-contamination.

Perform hand hygiene with soap and water or an alcohol-based hand rub before and after every patient contact, even if gloves are worn. The pathogen can survive on hands and surfaces, making this the single most critical step in breaking the chain of infection.

CautionNever use the same bottle of eye drops or ointment for both the infected and non-infected eye. If a separate bottle is not available, the tip must never touch the eye or eyelashes to avoid contaminating the medication reservoir.

## 핵심 개념

- **Fomite** — An inanimate object or material (e.g., washcloth, tissue) that can carry and transmit infectious organisms from one host to another.
- **Chain of Infection** — A model describing the six links required for an infection to spread: infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.
- **Bacterial Conjunctivitis** — Inflammation of the conjunctiva caused by bacteria, characterized by purulent discharge and highly contagious through direct contact with ocular secretions.
- **Portal of Exit** — The path by which an infectious agent leaves its reservoir host; in conjunctivitis, this is typically the drainage from the infected eye.

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