COHN Certification Exam Study Guide 2026-2027
COHN Certification Exam Study Guide 2026-2027
Comprehensive Review, Practice Questions, and Detailed Answer Explanations for Occupational Health Nursing Certification Success
By Capra Academy · Published June 9, 2026 · 280 pages
About This Book
Comprehensive preparation for the ABOHN COHN certification exam. Covers clinical occupational health nursing, case management, health and safety, and professional practice. Includes work-related injury and illness assessment, workers’ compensation, OSHA compliance, hearing conservation, ergonomics, and return-to-work programs. Practice questions with detailed rationales.
What’s Inside
- Clinical Occupational Health Nursing
- Work-Related Injury & Illness Assessment
- Workers’ Compensation & Case Management
- OSHA Compliance & Industrial Hygiene
- Ergonomics & Hearing Conservation
- Practice Questions with Rationales
Frequently Asked Questions
What is the COHN certification?
The COHN (Certified Occupational Health Nurse) from ABOHN validates proficiency in occupational health nursing practice — clinical care, case management, health surveillance, and workplace injury/illness management.
What are the eligibility requirements for the COHN?
You need a current RN license and 3,000 hours of occupational health nursing work experience earned during the 5 years prior to application. No specific degree beyond RN licensure is required.
How long is the COHN certification valid?
COHN certification is valid for 5 years. Recertification requires annual renewal fees and meeting recertification criteria including continuing education in occupational health nursing.
Related Resources
COHN Resource Hub
Planning Your COHN Preparation
Who this exam information is for
This page is for candidates considering or actively preparing for the COHN Certification. Use the linked exam resources to understand the credential, organize preparation, and identify the official requirements that must be confirmed before applying.
What to verify before scheduling
- Current eligibility and application documentation
- Current examination blueprint and domain weights
- Fees, testing windows, identification, and accommodation rules
- Question format, time limit, scoring, and score-report process
- Retake, renewal, and continuing-education policies
A practical study strategy
Begin with the current official content outline. Rank every domain by both blueprint weight and personal confidence, then spend the most time where high weight and low confidence overlap. Use practice questions diagnostically: record the tested domain, why the correct answer is best, why each distractor is weaker, and what source resolves any uncertainty.
Strengths and limitations of this study guide
The Capra Academy guide is designed to combine structured review with practice and answer explanations, making it useful for identifying weak areas and rehearsing exam-style decisions. It is a study aid—not the certifying organization’s candidate handbook, not a guarantee of a passing result, and not a substitute for current official eligibility or policy information. Requirements can change, so follow the official sources linked throughout this resource cluster.