ADDICTION NURSE CERTIFICATION CARN EXAM – PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
CORE DOMAINS
Pharmacological Therapies and Medication Assisted Treatment
Neurobiology of Addiction and Pathophysiology
Nursing Assessment and Diagnosis of Substance Use Disorders
Psychosocial Interventions and Counseling Techniques
Toxicology and Diagnostic Testing
Ethical, Legal, and Professional Issues in Addiction Nursing
Co-occurring Mental Health and Medical Disorders
Prevention, Education, and Community Outreach
INTRODUCTION
The purpose of this assessment is to evaluate the clinical proficiency and specialized knowledge required for the Certified Addictions Registered
Nurse (CARN) examination. This exam assesses a wide range of skills, including the ability to identify physiological withdrawal symptoms,
manage pharmacological interventions, and apply ethical principles in patient care. The structure consists of multiple-choice questions and
scenario-based items that mirror real-world clinical challenges. Emphasis is placed on critical thinking, evidence-based practice, and the
application of nursing judgment in diverse treatment settings. Candidates must demonstrate a deep understanding of the biopsychosocial model
of addiction to ensure safe, effective, and compassionate patient outcomes.
SECTION ONE: QUESTIONS 1–100
1. A patient with a history of heavy alcohol use presents with tremors, tachycardia, and auditory hallucinations. Which tool is most appropriate
for the nurse to use to monitor this patient?
A. GAD-7
B. PHQ-9
🟢 C. CIWA-Ar
D. CAGE
🔴 RATIONALE: The Clinical Institute Withdrawal Assessment for Alcohol, revised (CIWA-Ar) is the gold standard for monitoring the severity of
alcohol withdrawal symptoms and guiding medication dosing.
2. Which neurotransmitter system is primarily associated with the "reward pathway" and the reinforcing effects of most addictive substances?
,🟢 A. Dopamine
B. Acetylcholine
C. Glycine
D. Epinephrine
🔴 RATIONALE: The mesolimbic dopamine system, often called the reward pathway, is central to the reinforcing properties of drugs, as they
increase dopamine levels in the nucleus accumbens.
3. A patient in an opioid treatment program is prescribed methadone. The nurse should educate the patient that methadone works primarily as
a:
A. Partial agonist
B. Full antagonist
🟢 C. Full agonist
D. NMDA receptor blocker
🔴 RATIONALE: Methadone is a long-acting mu-opioid full agonist, which helps suppress withdrawal symptoms and reduce cravings by binding
to the same receptors as heroin or oxycodone.
4. When assessing a patient for a Substance Use Disorder (SUD) using the DSM-5 criteria, which of the following is considered a core
criterion?
A. Low socioeconomic status
B. Family history of substance use
🟢 C. Continued use despite social or interpersonal problems
D. Single episode of legal trouble related to use
🔴 RATIONALE: Continued use despite persistent social or interpersonal problems caused or exacerbated by the effects of the substance is one
of the 11 diagnostic criteria in the DSM-5.
5. Which of the following is a primary goal of Motivational Interviewing (MI) in the initial stage of addiction treatment?
A. Confronting the patient about their denial
B. Prescribing a rigid treatment schedule
🟢 C. Exploring and resolving ambivalence
D. Mandating attendance at 12-step meetings
🔴 RATIONALE: Motivational Interviewing is a person-centered, goal-oriented style of communication for eliciting and strengthening intrinsic
motivation by exploring and resolving ambivalence.
6. A pregnant patient who is dependent on opioids asks the nurse about the safest treatment option. Based on current evidence, the nurse
should recommend:
, 🟢 A. Opioid Agonist Therapy (OAT) with methadone or buprenorphine
B. Immediate supervised cold-turkey detoxification
C. Rapid antagonist-precipitated withdrawal
D. Switching to long-acting benzodiazepines
🔴 RATIONALE: Opioid Agonist Therapy (OAT) is the standard of care for pregnant women with opioid use disorder to prevent fetal stress
associated with withdrawal and improve neonatal outcomes.
7. A patient presents with constricted pupils, slowed respiration, and slurred speech. The nurse suspects an overdose of:
A. Cocaine
🟢 B. Opioids
C. Methamphetamine
D. Lysergic acid diethylamide (LSD)
🔴 RATIONALE: The triad of miosis (pinpoint pupils), respiratory depression, and depressed consciousness is classic for opioid toxicity.
8. Which ethical principle is most directly applied when a nurse supports a patient’s right to choose their own recovery path, even if it
contradicts the nurse’s personal beliefs?
A. Beneficence
B. Non-maleficence
🟢 C. Autonomy
D. Justice
🔴 RATIONALE: Autonomy refers to the patient's right to self-determination and making informed decisions about their own medical care and
recovery process.
9. In the "Stages of Change" model, a patient who is considering quitting smoking within the next six months but is not yet ready to take action
is in which stage?
A. Precontemplation
🟢 B. Contemplation
C. Preparation
D. Action
🔴 RATIONALE: The Contemplation stage is characterized by the individual being aware that a problem exists and seriously thinking about
overcoming it but having not yet made a commitment to take action.
10. Which of the following laboratory values is most indicative of chronic heavy alcohol consumption?
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
CORE DOMAINS
Pharmacological Therapies and Medication Assisted Treatment
Neurobiology of Addiction and Pathophysiology
Nursing Assessment and Diagnosis of Substance Use Disorders
Psychosocial Interventions and Counseling Techniques
Toxicology and Diagnostic Testing
Ethical, Legal, and Professional Issues in Addiction Nursing
Co-occurring Mental Health and Medical Disorders
Prevention, Education, and Community Outreach
INTRODUCTION
The purpose of this assessment is to evaluate the clinical proficiency and specialized knowledge required for the Certified Addictions Registered
Nurse (CARN) examination. This exam assesses a wide range of skills, including the ability to identify physiological withdrawal symptoms,
manage pharmacological interventions, and apply ethical principles in patient care. The structure consists of multiple-choice questions and
scenario-based items that mirror real-world clinical challenges. Emphasis is placed on critical thinking, evidence-based practice, and the
application of nursing judgment in diverse treatment settings. Candidates must demonstrate a deep understanding of the biopsychosocial model
of addiction to ensure safe, effective, and compassionate patient outcomes.
SECTION ONE: QUESTIONS 1–100
1. A patient with a history of heavy alcohol use presents with tremors, tachycardia, and auditory hallucinations. Which tool is most appropriate
for the nurse to use to monitor this patient?
A. GAD-7
B. PHQ-9
🟢 C. CIWA-Ar
D. CAGE
🔴 RATIONALE: The Clinical Institute Withdrawal Assessment for Alcohol, revised (CIWA-Ar) is the gold standard for monitoring the severity of
alcohol withdrawal symptoms and guiding medication dosing.
2. Which neurotransmitter system is primarily associated with the "reward pathway" and the reinforcing effects of most addictive substances?
,🟢 A. Dopamine
B. Acetylcholine
C. Glycine
D. Epinephrine
🔴 RATIONALE: The mesolimbic dopamine system, often called the reward pathway, is central to the reinforcing properties of drugs, as they
increase dopamine levels in the nucleus accumbens.
3. A patient in an opioid treatment program is prescribed methadone. The nurse should educate the patient that methadone works primarily as
a:
A. Partial agonist
B. Full antagonist
🟢 C. Full agonist
D. NMDA receptor blocker
🔴 RATIONALE: Methadone is a long-acting mu-opioid full agonist, which helps suppress withdrawal symptoms and reduce cravings by binding
to the same receptors as heroin or oxycodone.
4. When assessing a patient for a Substance Use Disorder (SUD) using the DSM-5 criteria, which of the following is considered a core
criterion?
A. Low socioeconomic status
B. Family history of substance use
🟢 C. Continued use despite social or interpersonal problems
D. Single episode of legal trouble related to use
🔴 RATIONALE: Continued use despite persistent social or interpersonal problems caused or exacerbated by the effects of the substance is one
of the 11 diagnostic criteria in the DSM-5.
5. Which of the following is a primary goal of Motivational Interviewing (MI) in the initial stage of addiction treatment?
A. Confronting the patient about their denial
B. Prescribing a rigid treatment schedule
🟢 C. Exploring and resolving ambivalence
D. Mandating attendance at 12-step meetings
🔴 RATIONALE: Motivational Interviewing is a person-centered, goal-oriented style of communication for eliciting and strengthening intrinsic
motivation by exploring and resolving ambivalence.
6. A pregnant patient who is dependent on opioids asks the nurse about the safest treatment option. Based on current evidence, the nurse
should recommend:
, 🟢 A. Opioid Agonist Therapy (OAT) with methadone or buprenorphine
B. Immediate supervised cold-turkey detoxification
C. Rapid antagonist-precipitated withdrawal
D. Switching to long-acting benzodiazepines
🔴 RATIONALE: Opioid Agonist Therapy (OAT) is the standard of care for pregnant women with opioid use disorder to prevent fetal stress
associated with withdrawal and improve neonatal outcomes.
7. A patient presents with constricted pupils, slowed respiration, and slurred speech. The nurse suspects an overdose of:
A. Cocaine
🟢 B. Opioids
C. Methamphetamine
D. Lysergic acid diethylamide (LSD)
🔴 RATIONALE: The triad of miosis (pinpoint pupils), respiratory depression, and depressed consciousness is classic for opioid toxicity.
8. Which ethical principle is most directly applied when a nurse supports a patient’s right to choose their own recovery path, even if it
contradicts the nurse’s personal beliefs?
A. Beneficence
B. Non-maleficence
🟢 C. Autonomy
D. Justice
🔴 RATIONALE: Autonomy refers to the patient's right to self-determination and making informed decisions about their own medical care and
recovery process.
9. In the "Stages of Change" model, a patient who is considering quitting smoking within the next six months but is not yet ready to take action
is in which stage?
A. Precontemplation
🟢 B. Contemplation
C. Preparation
D. Action
🔴 RATIONALE: The Contemplation stage is characterized by the individual being aware that a problem exists and seriously thinking about
overcoming it but having not yet made a commitment to take action.
10. Which of the following laboratory values is most indicative of chronic heavy alcohol consumption?
