# A charge nurse is reviewing incident reports from the past month and notices an increase in medication errors on the night shift. Which action should the charge nurse prioritize to address this safety concern?

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> subject: Leadership Management

## 문제

A charge nurse is reviewing incident reports from the past month and notices an increase in medication errors on the night shift. Which action should the charge nurse prioritize to address this safety concern?

The charge nurse has identified a pattern of medication errors occurring primarily during the night shift over the past month, with incidents involving wrong dosages, missed medications, and incorrect timing of administration.

## 보기

1. Schedule additional nursing staff for the night shift immediately
2. Implement mandatory overtime for day shift nurses to cover night shift
3. Report the findings to the hospital administration and wait for their directive
4. Conduct a comprehensive analysis of the medication error patterns and implement targeted interventions **✔ 정답**

**정답: 4**

## 해설

A comprehensive analysis identifies root causes for targeted interventions, aligning with quality improvement principles. Other options (staffing changes, waiting) are reactive and less effective.

## 심화 해설

Understanding the Safety Concern

The charge nurse has identified a systemic issue: a cluster of medication errors occurring specifically on the night shift. Medication errors involving wrong dosages, missed medications, and incorrect timing are serious threats to patient safety. A pattern linked to a specific shift suggests that environmental or human factors inherent to night work, rather than isolated individual mistakes, are the root cause. The immediate priority is not a quick fix like adding staff or escalating the problem without data, but a systematic investigation to understand the underlying mechanisms.

Analysis of the Prioritized Action

The correct action is to conduct a comprehensive analysis of the medication error patterns and implement targeted interventions. This aligns with the fundamental nursing process and quality improvement principles. Before implementing a solution, the charge nurse must first thoroughly assess the situation. This involves analyzing the incident reports to identify specific patterns: What types of errors are most common? At what time during the night shift do they peak? Are they associated with specific tasks, like high-alert medication administration or complex infusion pump programming? The provided evidence strongly supports that night-shift work introduces unique physiological and cognitive challenges that can be mitigated with targeted strategies. A comprehensive analysis would examine factors such as nurse fatigue, sleep hygiene, and workflow design, which are known contributors to errors. Once the root causes are identified, interventions can be tailored to address them directly, such as implementing a structured fatigue risk management system, redesigning the medication administration process for the night shift, or introducing a planned napping strategy, as explored in the literature [1,3].

Why Other Options Are Less Appropriate

- Scheduling additional nursing staff immediately is a reactive solution that may not address the core problem. While staffing levels are important, simply adding more nurses without understanding the cause of the errors—such as cognitive fatigue or poor sleep quality—may not reduce mistakes and could be an inefficient use of resources. A study on night-shift nurses found that sleep quality is influenced by multiple factors, and not all nurses experience fatigue uniformly; a blanket staffing increase does not account for this variability .

- Implementing mandatory overtime would likely exacerbate the problem. Mandatory overtime increases nurse fatigue, which is a "prevalent and multifactorial occupational health risk that increases the likelihood of work-related injuries and safety incidents" [3]. Forcing day-shift nurses, who may already be fatigued, to cover a night shift disrupts their circadian rhythm and sleep patterns further, directly contradicting the goal of reducing errors.

- Reporting findings and waiting for a directive is a passive approach that delays action. While informing administration is a necessary step in the chain of communication, the charge nurse has a professional and immediate duty to act on a recognized safety pattern. Waiting for a top-down directive abdicates the charge nurse's leadership responsibility in managing the unit's safety culture and delays the implementation of potentially critical safety interventions.

Connecting the Evidence to Clinical Practice

The research highlights the direct link between night-shift work, nurse fatigue, and patient safety. A focus group study on planned napping revealed that night shifts in intensive care are associated with "significant physical and cognitive fatigue among nurses, which may affect staff well-being and patient safety" [1]. This cognitive fatigue directly impairs the complex cognitive functions required for safe medication administration, such as dose calculation, patient identification, and timing coordination. Furthermore, research from Ethiopia confirms that poor sleep hygiene and fatigue can "impair nurses' performance and alertness, increasing... medical errors" . A comprehensive review on injury prevention in fatigue-prone nursing environments reinforces that interventions must be multifaceted, centering on "work design, human factors engineering, and safety culture" rather than simple staffing changes [3]. The charge nurse’s analysis should therefore explore these domains, examining whether the night-shift workflow, break schedules, or lighting conditions contribute to the error pattern. A latent profile analysis of night-shift nurses further demonstrates that sleep quality is not a monolithic issue; nurses fall into different categories with distinct characteristics and associated factors . This underscores the need for a nuanced, data-driven analysis to identify the specific subgroups of nurses or specific shift times most at risk, allowing for precisely targeted interventions rather than a one-size-fits-all approach.References (research sources)

- [1]Silent practices becoming norms: planned napping for nurses during intensive care night shifts - a focus group study.Research articleLöfqvist C, Siivonen JK, Axelin A, Peltonen LM, Ritmala M. (2026) · DOI: 10.1177/17449871251401036

- [3]Injury prevention in fatigue-prone nursing environments: a comprehensive review of strategies centered on work design, human factors engineering, and safety culture.Research articleHu L, Ding J, Shen X. (2026) · DOI: 10.3389/fpubh.2026.1792065

## 임상 시나리오

Clinical Practice Guide: Investigating Night-Shift Medication Errors

1. Immediate Assessment and Data Gathering

- **Trend Analysis:** Do not jump to staffing solutions. First, aggregate all incident reports from the past month. Categorize errors by type (wrong dose, omission, wrong time, wrong drug), time of occurrence (e.g., 0200-0400), and specific medication classes (e.g., high-alert medications like insulin or anticoagulants).

- **Workflow Observation:** Conduct a focused observation on the night shift. Note environmental factors: lighting levels, noise, frequency of interruptions during medication preparation, and the physical layout of the medication room.

- **Staff Interviews:** Privately interview night-shift nurses using a non-punitive, just-culture approach. Ask open-ended questions about their fatigue levels, sleep quality before shifts, perceived barriers to safe administration, and usability of medication administration technology (e.g., barcode scanners, infusion pumps).

2. Identifying Root Causes Specific to Night Shift

- **Fatigue and Circadian Misalignment:** Recognize that the human circadian rhythm naturally promotes sleep between midnight and 0600. Assess if errors peak during this circadian trough. Evaluate current shift rotation patterns (e.g., rapid rotation vs. permanent nights) and their impact on sleep debt.

- **System and Process Failures:** Investigate if pharmacy support, medication delivery schedules, or availability of clinical resources (e.g., a pharmacist for consultation) are reduced on the night shift, forcing nurses to work with less support.

- **Task Design:** Analyze if complex non-urgent tasks (e.g., changing intravenous fluids, routine vital signs) are clustered during the early morning hours, increasing cognitive load when alertness is lowest.

3. Implementing Targeted Interventions

- **Fatigue Risk Management:** Based on findings, advocate for evidence-based strategies such as scheduled short naps (20-30 minutes) during breaks, access to bright light therapy in break rooms, and education on sleep hygiene for night-shift staff. Discourage mandatory overtime.

- **Workflow Redesign:** Reschedule non-urgent tasks to earlier or later in the shift to protect the 0200-0500 low-alertness window. Implement a "quiet hour" protocol to minimize interruptions during high-risk medication administration times.

- **Technology and Safety Checks:** Introduce or reinforce independent double-checks for high-alert medications specifically on the night shift. Ensure barcode medication administration (BCMA) systems are fully functional and that workarounds are identified and addressed.

- **Staffing Model Review:** Only after addressing system factors, consider if the nurse-to-patient ratio or skill mix is appropriate for the acuity level during the night shift, using objective patient classification data.

4. Monitoring and Sustaining Improvement

- **Outcome Metrics:** Track the rate of medication errors per 1,000 patient-days on the night shift post-intervention. Also monitor staff fatigue scores using a validated tool like the Karolinska Sleepiness Scale.

- **Plan-Do-Study-Act (PDSA) Cycle:** Treat the initial intervention as a small test of change. Review data after two weeks, adjust the plan based on feedback, and then implement the refined process more broadly.

- **Transparent Reporting:** Share de-identified findings and the improvement plan with all nursing staff and hospital administration to foster a culture of safety and shared accountability, not blame.

## 핵심 개념

- **Root Cause Analysis** — A systematic process for identifying the underlying causes of a problem or adverse event to prevent recurrence, rather than just addressing its immediate symptoms.
- **Quality Improvement** — A continuous and systematic framework using data to monitor, assess, and improve healthcare processes and patient outcomes, such as reducing medication errors.
- **Circadian Rhythm Disruption** — A physiological factor in night-shift work where the body's internal clock is misaligned with the work schedule, leading to fatigue, reduced alertness, and increased error risk.
- **Medication Error** — Any preventable event that may cause or lead to inappropriate medication use or patient harm, including wrong dosage, omission, or incorrect timing.
- **Nursing Process** — A critical thinking framework involving assessment, diagnosis, planning, implementation, and evaluation, guiding nurses to assess a problem thoroughly before intervening.

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