# Situation: The occupational health nurse of a private garment factory with 800 workers, including a fabric-dyeing area, is reviewing the workplace health and safety program. The nurse sorts the factory's health activities by level of prevention. Which activity is TERTIARY prevention?

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> subject: Nursing Practice I — Community Health Nursing

## 문제

Situation: The occupational health nurse of a private garment factory with 800 workers, including a fabric-dyeing area, is reviewing the workplace health and safety program.

The nurse sorts the factory's health activities by level of prevention. Which activity is TERTIARY prevention?

## 보기

1. Modified duty for a worker healing from a back injury **✔ 정답**
2. Periodic hearing tests for workers in the weaving area
3. Noise enclosures installed around the looms
4. Hepatitis B vaccination of the clinic staff

**정답: 1**

## 해설

Tertiary prevention acts after disease or injury has occurred; it limits disability and restores function through rehabilitation. Modified duty and return-to-work programs let an injured worker resume work safely while recovering. Vaccination and noise enclosures prevent disease from starting (primary), and periodic audiometry detects early hearing loss (secondary).

## 심화 해설

Levels of Prevention in Occupational Health

The occupational health nurse categorizes workplace activities according to when they occur in relation to disease or injury. Tertiary prevention is implemented after a condition has already developed, with the goal of limiting disability, restoring function, and supporting safe reintegration into work. In this scenario, the worker has already sustained a back injury, so any intervention aimed at helping that worker recover and return to productive activity falls under tertiary prevention.

Modified duty is a classic tertiary prevention strategy. It involves temporarily adjusting job tasks, hours, or physical demands so an injured employee can resume work while still healing. The purpose is not to prevent the original injury, but to prevent worsening of the existing condition, avoid prolonged disability, and facilitate rehabilitation through graded activity. Return-to-work programs that incorporate modified duty are recognized as effective approaches for reducing disability duration and improving functional outcomes after work-related injuries. Studies of workers with upper extremity disorders show that returning to modified duty can ease the transition back to normal work activities [1]. Similarly, modified work programs that provide a gradual increase in workload are a core component of disability management for musculoskeletal conditions such as low back pain [3].

The other options represent earlier levels of prevention. Hepatitis B vaccination and noise enclosures are primary prevention because they aim to prevent disease or injury from occurring in the first place. Periodic hearing tests are secondary prevention because they screen for early, asymptomatic hearing loss so that intervention can begin before significant damage progresses.

| Prevention Level | Timing | Goal | Example from Scenario |
| --- | --- | --- | --- |
| Primary | Before disease or injury occurs | Prevent onset | Hepatitis B vaccination, noise enclosures around looms |
| Secondary | Early, often asymptomatic stage | Detect disease early; prompt treatment | Periodic hearing tests for weaving area workers |
| Tertiary | After disease or injury has occurred | Limit disability; restore function; rehabilitation | Modified duty for a worker healing from a back injury |

Key point! The timing of the intervention relative to the health problem determines the level of prevention. If the injury already exists and the intervention helps the person manage or recover from it, it is tertiary prevention.

Watch out! Do not confuse modified duty with ergonomic redesign of workstations. Ergonomic changes made before an injury occurs are primary prevention; modified duty is applied after an injury has already happened. Workplace accommodation research indicates that modifying ergonomic risk factors can reduce recurrent pain and improve return-to-work outcomes, but the accommodation itself is a tertiary intervention when it follows an existing injury . Interdisciplinary occupational health approaches that embed rehabilitation and accommodation strategies have also been associated with faster return-to-work times after musculoskeletal injuries, reinforcing the value of tertiary prevention in occupational settings .References (research sources)

- [1]Clinical and workplace factors associated with a return to modified duty in work-related upper extremity disorders.Research articleFeuerstein M, Shaw WS, Lincoln AE, Miller VI, Wood PM (2003) · DOI: 10.1016/s0304-3959(02)00339-1

- [3]Interventions for disability management.Research articleWeir R, Nielson WR (2001) · DOI: 10.1097/00002508-200112001-00021

## 임상 시나리오

Modified Duty as Tertiary PreventionSafe return to work after occupational injury
Modified duty is implemented after a worker has already sustained an injury, making it tertiary prevention. The goal is to limit disability, restore function, and support safe reintegration into the workplace.

Key components include temporarily adjusting job tasks, hours, or physical demands so the injured worker can resume work while still healing. Graded activity with a gradual increase in workload is a core element of disability management for conditions such as low back pain.

CautionModified duty must be individualized to the worker's specific injury and functional limitations. Pushing a worker back to full duty too quickly can worsen the existing condition and prolong disability.

## 핵심 개념

- **Tertiary prevention** — Interventions after disease or injury has occurred to limit disability, restore function, and support rehabilitation.
- **Modified duty** — Temporary adjustment of job tasks, hours, or physical demands to allow an injured worker to resume work safely while recovering.
- **Secondary prevention** — Screening and early detection of disease before clinical symptoms appear, such as periodic audiometry.
- **Primary prevention** — Interventions that prevent disease or injury from occurring, such as vaccination and noise enclosures.
- **Return-to-work program** — Structured plan incorporating graded activity and modified duty to reduce disability duration and improve functional outcomes.

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