COHN(C) study materials
COHN(C) study resources

COHN(C) key terms

COHN(C) · Get comfortable with the vocabulary.

Occupational Health Nursing

A specialty practice that promotes and protects the health of workers through assessment, prevention, surveillance, and care delivered in or related to the workplace setting.

Related: Primary Prevention, Health Surveillance
Scope of Practice

The legally defined boundaries of what a nurse may do, based on licensure, education, competence, and state or provincial nurse practice acts.

Related: Standard of Care, Delegation
Standard of Care

The level and type of care a reasonably prudent nurse with similar training would provide in comparable circumstances, used to judge professional conduct.

Related: Scope of Practice, Negligence
Negligence

Failure to meet the accepted standard of care, causing harm, established through duty, breach, causation, and damages in a legal claim.

Related: Standard of Care, Documentation
Confidentiality

The ethical and legal obligation to protect worker health information from unauthorized disclosure, subject to limited exceptions such as imminent danger or legally required reporting.

Related: Need-to-Know Access, Documentation
Need-to-Know Access

A privacy principle limiting release of a worker's medical information to those with a legitimate, job-related reason, excluding unrelated details from managers and coworkers.

Related: Confidentiality, Fitness-for-Duty Evaluation
Informed Consent

Voluntary agreement to a health procedure or screening after receiving understandable information about purpose, risks, benefits, and alternatives, documented before the activity begins.

Related: Confidentiality, Health Surveillance
Documentation

Timely, objective, and complete recording of assessments, interventions, exposures, and communications that supports continuity of care and provides legal evidence of nursing actions.

Related: Negligence, Confidentiality
Delegation

Assigning a specific nursing task to another competent person while the nurse retains accountability for appropriate selection, instruction, supervision, and evaluation of the outcome.

Related: Scope of Practice, Standard of Care
Hazard Identification

A systematic process of recognizing biological, chemical, physical, ergonomic, and psychosocial agents or conditions in the workplace that could harm workers.

Related: Hierarchy of Controls, Exposure Assessment
Exposure Assessment

Measuring or estimating the intensity, frequency, and duration of worker contact with a hazard, often through sampling, observation, and exposure records.

Related: Hazard Identification, Biological Monitoring
Hierarchy of Controls

A ranked approach to reducing risk, from most to least effective: elimination, substitution, engineering controls, administrative controls, and personal protective equipment.

Related: Personal Protective Equipment, Hazard Identification
Personal Protective Equipment

Devices such as gloves, respirators, and eye protection worn by workers to reduce exposure, used as a last line of defense after other controls.

Related: Hierarchy of Controls, Respirator Fit Testing
Respirator Fit Testing

A procedure verifying that a tight-fitting respirator seals to a worker's face, conducted before initial use and periodically or when facial changes occur.

Related: Personal Protective Equipment, Medical Clearance
Permissible Exposure Limit

A regulatory maximum airborne concentration of a substance to which most workers may be exposed over a specified time period, such as an eight-hour shift.

Related: Exposure Assessment, Threshold Limit Value
Threshold Limit Value

A nonregulatory occupational exposure guideline published by a scientific committee, representing airborne concentrations believed safe for most workers over a working lifetime.

Related: Permissible Exposure Limit, Exposure Assessment
Biological Monitoring

Testing blood, urine, or breath to measure a worker's internal dose of a substance or its metabolite, reflecting total exposure from all routes.

Related: Exposure Assessment, Health Surveillance
Health Surveillance

Ongoing, systematic collection and review of worker health data, such as screening results and exposure records, to detect work-related disease early and guide prevention.

Related: Medical Screening, Biological Monitoring
Medical Screening

Testing asymptomatic workers to detect early signs of work-related conditions, such as hearing tests or lung function tests, with results linked to preventive action.

Related: Health Surveillance, Audiometric Testing
Audiometric Testing

Measurement of hearing thresholds by frequency to detect noise-induced hearing loss, typically done at baseline and annually with comparison to prior results.

Related: Medical Screening, Standard Threshold Shift
Standard Threshold Shift

A defined average worsening of hearing thresholds compared with baseline, triggering notification, follow-up, and review of noise controls and hearing protection use.

Related: Audiometric Testing, Hearing Conservation Program
Hearing Conservation Program

A set of workplace measures including noise monitoring, audiometric testing, hearing protection, training, and recordkeeping required where noise exposure reaches a specified level.

Related: Audiometric Testing, Standard Threshold Shift
Medical Clearance

A clinician's determination that a worker can safely perform a task or wear protective equipment, such as a respirator, given current health status and job demands.

Related: Respirator Fit Testing, Fitness-for-Duty Evaluation
Fitness-for-Duty Evaluation

An individualized clinical assessment of whether a worker can perform essential job functions safely, focusing on functional capacity rather than diagnosis.

Related: Functional Capacity Evaluation, Need-to-Know Access
Functional Capacity Evaluation

A structured assessment of a worker's physical abilities, such as lifting, standing, and gripping, compared with the demands of a specific job.

Related: Fitness-for-Duty Evaluation, Job Analysis
Job Analysis

A systematic description of a position's tasks, physical demands, tools, and environment, used to match workers to jobs and design accommodations or return-to-work plans.

Related: Functional Capacity Evaluation, Essential Functions
Essential Functions

The fundamental duties of a position that must be performed, with or without reasonable accommodation, distinguished from marginal or incidental tasks.

Related: Job Analysis, Reasonable Accommodation
Reasonable Accommodation

A modification to a job, schedule, equipment, or work environment that enables a qualified worker with a disability to perform essential functions without undue hardship.

Related: Essential Functions, Return-to-Work Program
Return-to-Work Program

A coordinated employer process offering modified or transitional duties, gradually increasing demands, to help injured or ill workers resume productive employment safely.

Related: Transitional Duty, Reasonable Accommodation
Transitional Duty

Temporary, modified work assignments that accommodate current functional limits while a worker recovers, typically with defined review dates and progression criteria.

Related: Return-to-Work Program, Job Analysis
Case Management

A collaborative process of assessing, planning, coordinating, and evaluating services and resources to meet an injured worker's needs and achieve agreed outcomes.

Related: Return-to-Work Program, Transitional Duty
Workers' Compensation

A no-fault insurance system providing medical care, wage replacement, and disability benefits to workers injured or made ill by work, generally barring suits against employers.

Related: Case Management, Recordkeeping
Recordkeeping Requirements

Legal obligations to create and retain records of work-related injuries, illnesses, exposures, and training for specified periods, with formats and timelines set by regulation.

Related: Workers' Compensation, Documentation
Primary Prevention

Actions taken before disease or injury occurs, such as eliminating hazards, immunizing workers, and providing education, to reduce incidence in the workforce.

Related: Secondary Prevention, Health Promotion
Secondary Prevention

Early detection and prompt intervention for workers with preclinical or early disease, such as screening programs and exposure surveillance, to limit progression and disability.

Related: Primary Prevention, Medical Screening
Health Promotion

Planned activities and supportive environments that help workers improve and maintain health, such as physical activity, nutrition, sleep, and stress-management programs.

Related: Primary Prevention, Health Risk Appraisal
Health Risk Appraisal

A questionnaire-based tool that estimates a worker's risk for disease from lifestyle and personal factors and provides individualized feedback to guide health goals.

Related: Health Promotion, Motivational Interviewing
Motivational Interviewing

A collaborative, goal-oriented counseling style that explores a worker's own reasons for change and strengthens confidence, rather than directing or persuading.

Related: Health Promotion, Health Risk Appraisal
Health Coaching

A structured, worker-centered partnership using goal setting, education, and follow-up to support sustained behavior change and self-management of health conditions.

Related: Motivational Interviewing, Health Promotion
Emergency Action Plan

A written document specifying roles, alarms, evacuation routes, assembly points, and communication methods for responding to workplace emergencies.

Related: Drill, Triage
Drill

A planned rehearsal of emergency procedures that tests response times, roles, and equipment, followed by a debrief to identify and correct gaps.

Related: Emergency Action Plan, After-Action Review
Triage

Rapid sorting of casualties by severity of injury and likelihood of benefit from care, to allocate limited resources during an emergency or mass-casualty event.

Related: Emergency Action Plan, Incident Command System
Incident Command System

A standardized, scalable management structure with defined roles and common terminology used to coordinate response across agencies during emergencies.

Related: Triage, After-Action Review
After-Action Review

A structured debrief after an exercise or real event that examines what happened, what worked, and what should change, producing documented improvement actions.

Related: Drill, Quality Improvement
Root Cause Analysis

A systematic method for tracing an adverse event or near miss back to underlying system failures, so that corrective actions address causes rather than blame individuals.

Related: Quality Improvement, After-Action Review
Quality Improvement

Continuous, data-driven efforts using defined measures, planned changes, and remeasurement to improve the safety, effectiveness, and efficiency of occupational health services.

Related: Root Cause Analysis, Benchmarking
Benchmarking

Comparing an organization's performance measures, such as injury rates or program participation, with internal targets or external peers to identify improvement opportunities.

Related: Quality Improvement, Incidence Rate
Incidence Rate

The number of new cases of injury or illness in a population during a defined period, often expressed per 100 or 200,000 hours worked for comparison.

Related: Benchmarking, Recordkeeping Requirements
Program Evaluation

A structured assessment of whether an occupational health program met its objectives, reached intended workers, and delivered value relative to its costs.

Related: Quality Improvement, Benchmarking