COHN Practice Test 2026 — Free COHN Exam Prep Questions
The COHN exam certifies registered nurses who provide clinical care, case management and prevention services to workers and worker populations. Our practice set follows ABOHN's current COHN test blueprint, covering clinical practice, case management, risk and compliance, and program management, with workplace scenarios and checked calculations.
A supervisor tells the occupational health nurse that an employee's attendance and work quality have dropped and asks whether the employee might be depressed. What is the best guidance for the supervisor?
COHN format, scoring & key facts
Computer-based at Assessment Systems Corporation (ASC) test centers or by Live Remote Proctoring (MonitorEDU); 120-day testing window.
Facts last verified Oct 5, 2026. Source: www.abohn.org/sites/default/files/All%20three%20Credentials%20-%20%20Handbook%202025%20With%20LRP%20Changes%20Rev%2006172025_0.pdf. Always confirm details with ABOHN before your exam.
When can you take the COHN?
Plan backwards from your exam date
What the COHN covers
Every PrepBanq COHN test mirrors the official domain weights.
Domain distribution
% of the exam| Content domain | Weight | ≈ Questions on exam | Our practice questions |
|---|---|---|---|
Clinical PracticeWork-related and non-work-related injuries and illnesses, nursing standards, nurse practice laws, infection control, cultural competence and medical documentation. | 31.1% | ~42 | 8 questions → |
Case ManagementFitness for duty, disability management (STD, LTD, FMLA), workers' compensation, return to work, modified duty, accommodations and referrals. | 22.2% | ~30 | 5 questions → |
Risk Management and PreventionWorker and workplace assessments, job requirements, ergonomics and work design, environmental health and industrial hygiene, and disaster planning. | 14.8% | ~20 | 4 questions → |
ComplianceEthical, legal and regulatory compliance (OSHA recordkeeping, records retention), occupational health surveillance, and drug and alcohol programs. | 14.8% | ~20 | 4 questions → |
Program ManagementHealth and safety training, employee assistance, wellness and health promotion, regulatory testing programs and stakeholder collaboration. | 17% | ~23 | 4 questions → |
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COHN FAQ
How many questions are on the COHN?
The COHN has 160 questions (135 of them scored) and you have 3 hours to finish. Question types: Multiple choice, four options with one correct answer.
How long is the COHN exam?
Testing time for the COHN is 3 hours.
What is on the COHN?
The COHN covers Clinical Practice (about 31.1%), Case Management (about 22.2%), Risk Management and Prevention (about 14.8%), Compliance (about 14.8%), Program Management (about 17%).
Who administers the COHN?
The Certified Occupational Health Nurse (COHN) Exam is administered by ABOHN. Delivery: Computer-based at Assessment Systems Corporation (ASC) test centers or by Live Remote Proctoring (MonitorEDU); 120-day testing window.
Is there a free COHN practice test?
Yes. PrepBanq has 3 free COHN practice tests with 25 exam-style questions in the real COHN formats, and every answer is explained. No credit card is needed.
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