Study guide
1.1 CARN Exam Overview, Eligibility & Requirements
Certified Addictions Registered Nurse CARN
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1 Chapter 1: Introduction & Exam Overview
1.1 CARN Exam Overview, Eligibility & Requirements 1.2 How to Use This Study Guide & Preparation Strategy
2 Chapter 2: Assessment & Screening
2.1 DSM-5-TR Substance Use Disorder Diagnostic Criteria & Severity Classification 2.2 Standardized Screening Tools: AUDIT, DAST-10, CAGE, CRAFFT & ASSIST 2.3 Withdrawal Severity Rating Scales: CIWA-Ar & COWS 2.4 Neonatal & Special Population Assessment: Finnegan, Eat-Sleep-Console & Life Stages 2.5 Assessment of Co-Occurring Psychiatric & Medical Disorders
3 Chapter 3: Planning & Intervention
3.1 ASAM Criteria & Continuum of Placement Care 3.2 Motivational Interviewing (OARS) & Transtheoretical Stages of Change 3.3 Trauma-Informed Care Principles & Addictions Nursing Practice 3.4 Family Dynamics, Codependency, CRAFT Model & Family Support Systems 3.5 Nursing Diagnosis, Outcome Identification & Individualized Addictions Care Planning
4 Chapter 4: Clinical Management & Pharmacotherapy
4.1 Alcohol Withdrawal Syndrome Management & Complication Prevention 4.2 Opioid Withdrawal Management & Symptom-Triggered Protocols 4.3 Medications for Opioid Use Disorder (MOUD: Methadone, Buprenorphine & Extended-Release Naltrexone) 4.4 Pharmacotherapy for Alcohol & Nicotine Use Disorders 4.5 Harm Reduction Strategies: Naloxone, Fentanyl Test Strips & Syringe Services 4.6 Pain Management in Patients with Substance Use Disorders
5 Chapter 5: Substance-Specific Disorders, Prevention & Patient Education
5.1 Stimulant Use Disorders: Cocaine, Amphetamines & Caffeine 5.2 Sedative, Hypnotic, Anxiolytic & Gabapentinoid Misuse 5.3 Cannabis & Hallucinogen Use Disorders 5.4 Tobacco Use Disorder, Vaping & Cessation Interventions 5.5 Prevention, Brief Intervention, Patient Education & Behavioral Addictions
6 Chapter 6: Evaluation, Recovery & Continuing Care
6.1 Relapse Prevention Models: Marlatt's Model, Urge Surfing & High-Risk Situations 6.2 Mutual-Help Groups & Peer Recovery Support: 12-Step, SMART Recovery & Peer Specialists 6.3 Recovery Capital, Social Determinants of Health & Holistic Wellness 6.4 Transitions of Care, Discharge Planning & Long-Term Recovery Management
7 Chapter 7: Professional Role, Ethics & Legal Issues
7.1 ANA/IntNSA Scope & Standards of Addictions Nursing Practice 7.2 Confidentiality Laws: 42 CFR Part 2 vs. HIPAA & 2024 Alignment Updates 7.3 Legal & Ethical Issues, Stigma Reduction & Person-First Language
1.1 CARN Exam Overview, Eligibility & Requirements
Key Takeaways Explain This Topic AI
The CARN examination consists of 150 multiple-choice questions (about 125 scored plus ~25 unscored pilot items) administered over a 3-hour computer-based testing session at PSI testing sites through C-NET on behalf of the ANCB.
The passing standard is 75%, set by a criterion-referenced Modified Angoff procedure; results are available immediately at the testing facility, and non-passing candidates receive sub-scores by major content area.
Eligibility requires a current, full, unrestricted RN license (NCLEX or CGFNS/WES/ERES equivalency), 2,000 hours of addictions nursing practice within the last 3 years, and 30 continuing-education hours (at least 51% addictions-specific) within the last 3 years.
The 2026 exam fee is $300 ($250 with proof of ASAN, IntNSA USA, or NOVA membership); applications are online-only (paper applications ended November 1, 2025), and approved candidates receive a 90-day testing window.
The official blueprint (implemented 2026) is a matrix: 7 patient-problem rows (opioid 27%, alcohol 25%, stimulants 15%, co-occurring disorders 12%, medication misuse 10%, cannabinoids/hallucinogens 6%, tobacco 5%) crossed with 5 practice domains, the largest being care management across the recovery continuum (35%).
Last updated: August 2026
1.1 CARN Exam Overview, Eligibility & Requirements
The Certified Addictions Registered Nurse (CARN) credential represents the gold standard in board certification for registered nurses specializing in substance use disorders (SUD) and addictive behaviors. Governed by the Addictions Nursing Certification Board (ANCB) — founded in 1989 by the International Nurses Society on Addictions (IntNSA) and autonomous since 2014 — CARN certification validates advanced specialty knowledge, expert clinical judgment, and adherence to evidence-based nursing standards. Examination development and administration are conducted by the Center for Nursing Education and Testing (C-NET) . Achieving CARN certification signifies verified mastery across acute withdrawal management, chronic disease management, harm reduction, pharmacotherapy, dual-diagnosis care, and ethical advocacy.
Eligibility Criteria & Mandatory Requirements
To ensure that certificants possess both foundational nursing competence and dedicated clinical experience, the ANCB enforces three core eligibility requirements that must all be satisfied prior to sitting for the examination:
Current RN Licensure : Candidates must hold a current, full, and unrestricted registered nurse license — earned by passing the NCLEX or verified for equivalency by the Commission on Graduates of Foreign Nursing Schools (CGFNS), World Education Services (WES), or Educational Records Evaluation Services (ERES). Nurses licensed in more than one jurisdiction must hold full and unrestricted licenses in every jurisdiction where they are licensed.
Specialty Practice Hours : Candidates must attest to a minimum of 2,000 hours (one year) of addictions-related nursing practice within the three years immediately preceding application. Eligible roles span staff nursing, administration, teaching, private practice, consultation, counseling, or research.
Continuing Education (CE) Contact Hours : Candidates must complete 30 contact hours of continuing education within the preceding three years. At least 51% (minimum 16 hours) must be specific to addictions nursing; the remainder may cover related topics such as HIV/AIDS, hepatitis, or pain management. Certificates are not uploaded with the application but must be produced on request.
Eligibility Parameter Summary
Parameter Mandatory Requirement Acceptable Documentation Primary Authority
Licensure Current, full, unrestricted RN license (NCLEX or CGFNS/WES/ERES equivalency) License verification; government-issued photo ID matching application name State Board of Nursing / ANCB
Practice Experience 2,000 hours in past 3 years Attestation in online application ANCB / C-NET
Continuing Education 30 CE hours in past 3 years Detailed in online application; certificates on request ANCB (≥51% addictions-specific)
Recertification Every 4 years 60 CE hours (≥51% addictions) + 2,000 practice hours, or re-examination ANCB
Alternative-to-Discipline Policy: Nurses in recovery are welcomed. A surrendered license or monitoring-agreement violation makes an applicant ineligible; a nurse with a restricted license in a monitoring program must submit a program letter confirming an active license, compliance, and program support for testing.
Exam Format, Technical Structure & Scoring
The CARN examination is a standardized, computer-based assessment testing clinical reasoning and decision-making rather than rote recall.
Total Question Count : 150 multiple-choice questions.
Scored vs. Unscored Items : Of the 150 items, about 25 are unscored pilot (experimental) questions being validated for future test forms; the remaining ~125 items are scored. Pilot items are indistinguishable from scored items, so answer all 150 with equal diligence.
Time Allocation : 3 hours (180 minutes) of testing time, averaging 1.2 minutes (72 seconds) per question. There is no penalty for guessing.
Passing Standard : Candidates must answer 75% of test items correctly . The standard is set by a panel of addictions nursing experts using the criterion-referenced Angoff procedure — candidates are measured against a predetermined standard, not against other test takers.
Results : Scores are available immediately at the testing facility as a total percentage correct. Non-passing candidates also receive sub-scores for each major content area to guide remediation; passing candidates receive only the total score.
Retakes : C-NET emails an automated retake scheduling link no sooner than 30 days after the last attempt (usable once; reissued after each unsuccessful attempt for up to one year from the original application date).
Fees : $300 standard; $250 with proof of membership in ASAN, IntNSA USA, or NOVA attached to the application. Applications are online-only (paper applications ended November 1, 2025); approved candidates receive a 90-day testing window to schedule and sit at a PSI testing location.
Content Domains & Blueprint Breakdown (Official ANCB Blueprint)
The current ANCB test blueprint — published by C-NET and implemented for the 2026 exam cycle — is a two-dimensional matrix crossing patient problems (substance classes and co-occurring conditions) with domains of practice (addictions nursing activities). Every exam item tests one patient problem through one practice activity.
Patient Problem Rows (% of 150 Items)
- Patient Problem Weight Approx. Items
- A. Opioid use disorder 27% 40–42
- B. Alcohol use disorders 25% 37–39
- E. Stimulant use disorders (cocaine, amphetamines, caffeine) 15% 22–24
D. Co-occurring psychiatric/comorbid medical disorders (process addictions, infectious diseases, mental health disorders) 12% 19–21
- C. Medication misuse (sedative/hypnotics/anxiolytics, gabapentinoids) 10% 15–17
- F. Cannabinoids and other hallucinogens 6% 9–11
- G. Tobacco use disorder (vaping, nicotine) 5% 7–9
- Domain-of-Practice Columns (% of 150 Items)
- Practice Domain Weight Approx. Items Scope
- 1. Perform a biopsychosocial SUD assessment 15% 22–24 Screening tools, DSM-5-TR criteria, history, labs
- 2. Assess acute care needs of SUD patients 20% 29–31 Intoxication, overdose, withdrawal severity and risk
3. Develop & implement an individualized plan of care 15% 22–24 ASAM placement, nursing diagnoses, treatment planning
4. Educate & promote behavioral change 15% 22–24 Brief intervention, prevention, patient/family teaching
5. Care management, treatment & evaluation across the recovery continuum (including special populations) 35% 52–54 Pharmacotherapy, monitoring, recovery support, special populations
How This Guide Maps to the Matrix
Chapters 2 and 4 teach assessment and acute care across all substance classes (practice domains 1–2).
Chapter 3 covers individualized planning (domain 3): ASAM criteria, motivational interviewing, trauma-informed care, family work, and nursing-process care planning.
Chapter 4 and Chapter 5 cover treatment and management for every patient-problem row — alcohol, opioids, stimulants, sedatives/gabapentinoids, cannabinoids/hallucinogens, and tobacco — including withdrawal, MOUD/MAUD, harm reduction, and pain management (domains 2 and 5).
Chapter 5 also delivers domain 4: prevention, SBIRT brief intervention, patient education, and behavioral addictions.
Chapter 6 addresses the recovery continuum (domain 5): relapse prevention, mutual-help, recovery capital, and transitions of care.
Chapter 7 covers professional role, ethics, and legal content that the blueprint embeds across all domains (42 CFR Part 2, scope and standards, stigma).
Application Process & Recertification Lifecycle
Online Application : Apply through the C-NET website (Addictions Nursing section), paying via PayPal and uploading a government-issued photo ID whose name exactly matches the application.
Processing & Permit : Standard processing takes about two weeks. Approved candidates are registered with C-NET's testing partner PSI , receive an examination permit by email, and must schedule and test within a 90-day window at a PSI testing location.
Four-Year Recertification : CARN certification is valid for 4 years with a current RN license. Recertify by documenting 60 CE contact hours (at least 51% addictions-specific) plus 2,000 hours of addictions-related practice during the certification period — or by passing the current CARN examination. A 3-month post-expiration grace period (with late fee) precedes full lapse.
Official Regulatory & Professional Resources
Addictions Nursing Certification Board (ANCB) — certification policies, exam statistics, and practice analysis summaries.
C-NET (Center for Nursing Education and Testing) — online application, candidate handbook, official exam blueprint PDF, practice test, and fee schedules.
IntNSA (International Nurses Society on Addictions) — professional society; the ANA/IntNSA Addictions Nursing: Scope and Standards of Practice (3rd ed., 2022) is available at nursebooks.org.