COHN-S Certified Occupational Health Nurse-Specialist Certification Exam Study Guide 2026-2027
COHN-S Certified Occupational Health Nurse-Specialist Certification Exam Study Guide 2026-2027
Comprehensive Review, Practice Questions, and Detailed Answer Explanations Aligned with ABOHN Certification
By Capra Academy · Published June 9, 2026 · 285 pages
About This Book
Comprehensive preparation for the ABOHN COHN-S certification exam. Covers clinical occupational health practice, case management, health and safety, management and leadership, and research. Includes industrial hygiene, OSHA regulations, workers’ compensation, and program management topics. Practice questions with detailed rationales.
What’s Inside
- Clinical Occupational Health Practice
- Case Management & Workers’ Compensation
- Industrial Hygiene & OSHA Regulations
- Management & Program Leadership
- Research & Evidence-Based Practice
- Practice Questions with Rationales
Frequently Asked Questions
What is the COHN-S certification?
The COHN-S (Certified Occupational Health Nurse-Specialist) from ABOHN validates advanced expertise in occupational health nursing at the specialist level — including management, program development, and policy implementation.
What is the difference between COHN and COHN-S?
The COHN is for clinical occupational health nurses (RN required). The COHN-S is for specialists with broader management responsibilities (bachelor’s degree required). The COHN-S exam has more management content (22% vs 10%).
How many questions are on the COHN-S exam?
The COHN-S exam has 160 multiple-choice questions (135 scored + 25 pretest) with a 3-hour time limit. Eligibility requires a bachelor’s degree, RN license, and 3,000 hours of occupational health nursing experience in the past 5 years.
Related Resources
COHN-S Resource Hub
Planning Your COHN-S Preparation
Who this exam information is for
This page is for candidates considering or actively preparing for the COHN-S Certified Occupational Health Nurse-Specialist 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.