NCAC study materials
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NCAC key terms

NCAC · Get comfortable with the vocabulary.

Substance Use Disorder

A medical diagnosis describing continued use of alcohol or drugs despite significant harm, with symptoms grouped into impaired control, social impairment, risky use, and pharmacological criteria such as tolerance and withdrawal.

Related: Tolerance, Withdrawal, Co-occurring Disorders
Tolerance

A state in which the body adapts to a substance so that larger amounts are needed to produce the effect previously achieved with smaller doses.

Related: Withdrawal, Physical Dependence
Withdrawal

A cluster of physical and psychological symptoms that appear when use of a substance is reduced or stopped after a period of heavy or prolonged use.

Related: Detoxification, Physical Dependence
Physical Dependence

A physiological state of adaptation to a drug marked by tolerance and withdrawal; it can occur with medically supervised use and is not the same thing as addiction.

Related: Tolerance, Withdrawal, Substance Use Disorder
Craving

An intense, often involuntary urge to use a substance, frequently triggered by cues such as people, places, emotions, or times of day linked to past use.

Related: Relapse, Reward Pathway
Relapse

A return to substance use after a period of abstinence or reduced use; it is understood as a common feature of a chronic condition rather than as personal failure.

Related: Relapse Prevention, Craving, Recovery
Recovery

A self-directed process of improved health and wellness, often supported by treatment, peers, and community, in which a person manages a substance use or mental health condition.

Related: Relapse, Twelve-Step Facilitation
Co-occurring Disorders

The presence of a substance use disorder together with another mental health condition in the same person; each condition can worsen the other, so both require integrated treatment.

Related: Assessment, Substance Use Disorder
Biopsychosocial Model

An explanation of addiction as the product of interacting biological, psychological, and social factors, rather than a single cause such as willpower or genetics alone.

Related: Assessment, Substance Use Disorder
Reward Pathway

Brain circuitry centered on dopamine signaling from the midbrain to the nucleus accumbens that flags experiences as rewarding and motivates repetition, including repeated drug use.

Related: Craving, Tolerance
Behavioral Addiction

A pattern of compulsive behavior, such as gambling, gaming, or sexual activity, that produces craving and continued involvement despite harm, without an ingested substance.

Related: Craving, Substance Use Disorder
Harm Reduction

Practical strategies and policies that reduce the negative consequences of substance use, such as naloxone distribution and syringe services, without requiring abstinence as a precondition.

Related: Stigma, Recovery
Stigma

Negative beliefs and social devaluation attached to substance use and mental health conditions, which discourage people from seeking help and can shape how they are treated.

Related: Cultural Competence, Harm Reduction
Screening

A brief, structured process used to identify whether a person may have a substance use or mental health problem and needs further evaluation; it does not establish a diagnosis.

Related: Assessment, Levels of Care
Assessment

A comprehensive, ongoing process of gathering information about a person's use history, health, functioning, and strengths in order to guide diagnosis and treatment planning.

Related: Screening, Treatment Plan, Biopsychosocial Model
Detoxification

The medically managed process of clearing a substance from the body and managing withdrawal symptoms; it is a first step rather than a complete treatment for addiction.

Related: Withdrawal, Levels of Care, Medication-Assisted Treatment
Medication-Assisted Treatment

The use of approved medications, such as buprenorphine, methadone, or naltrexone, combined with counseling and support to treat opioid or alcohol use disorders.

Related: Detoxification, Withdrawal
Motivational Interviewing

A collaborative, goal-directed counseling style that strengthens a person's own motivation and commitment to change by exploring ambivalence without argument or confrontation.

Related: Stages of Change, Treatment Plan
Cognitive Behavioral Therapy

A structured treatment that helps people identify and change the distorted thoughts, beliefs, and behaviors maintaining substance use, and build coping skills for high-risk situations.

Related: Relapse Prevention, Motivational Interviewing
Contingency Management

An approach that gives tangible, agreed-upon rewards for verified abstinence or for meeting treatment goals, based on the principle that reinforced behavior tends to be repeated.

Related: Treatment Plan, Motivational Interviewing
Twelve-Step Facilitation

A structured approach that encourages participation in mutual-help programs such as Alcoholics Anonymous by explaining the steps, linking clients to meetings, and addressing barriers to attendance.

Related: Recovery, Relapse Prevention
Levels of Care

A framework, such as the ASAM criteria, that matches treatment intensity, from outpatient through residential to medically managed inpatient, to a person's needs and severity.

Related: Assessment, Detoxification
Relapse Prevention

A treatment approach that teaches people to recognize high-risk situations and warning signs and to use coping strategies so gains are maintained and lapses are handled constructively.

Related: Relapse, Cognitive Behavioral Therapy
Treatment Plan

A written, individualized document stating problems, goals, measurable objectives, interventions, and timeframes, developed with the client and reviewed and updated regularly.

Related: Assessment, Documentation, Stages of Change
Stages of Change

A model describing readiness to change in stages, including precontemplation, contemplation, preparation, action, and maintenance, used to match interventions to a person's current position.

Related: Motivational Interviewing, Treatment Plan
Informed Consent

The process of explaining a proposed service, its risks, benefits, and alternatives, and confirming that a client voluntarily agrees before treatment, assessment, or release of information.

Related: Confidentiality, Ethical Standards
Confidentiality

The ethical and legal duty to protect client information from unauthorized disclosure; federally assisted programs follow additional restrictions under 42 CFR Part 2.

Related: Informed Consent, Ethical Standards, Documentation
Trauma-Informed Care

An approach that recognizes the widespread impact of trauma and designs services to avoid retraumatization while supporting safety, trust, choice, and empowerment.

Related: Cultural Competence, Assessment
Cultural Competence

The ability to understand and respond respectfully to clients' cultural identities, values, and experiences, and to adapt communication and treatment approaches accordingly.

Related: Trauma-Informed Care, Stigma
Documentation

Timely, objective written records of contacts, assessments, services delivered, client progress, and referrals that meet legal, ethical, and reimbursement standards.

Related: Treatment Plan, Confidentiality
Crisis Intervention

Short-term, focused support to stabilize a person in acute distress, such as suicidal ideation or overdose risk, followed by referral to an appropriate level of care.

Related: Levels of Care, Assessment
Case Management

Coordinating services, referrals, and resources so clients can access needed medical, social, and recovery supports, and monitoring that those connections are maintained over time.

Related: Levels of Care, Treatment Plan
Duty to Warn

The legal obligation in some jurisdictions to take protective action when a client makes a credible threat of serious violence toward an identifiable third party.

Related: Confidentiality, Ethical Standards
Ethical Standards

Formal principles and rules governing professional conduct, such as confidentiality, informed consent, and avoiding exploitation, that counselors must follow and are accountable for upholding.

Related: Confidentiality, Dual Relationship, Scope of Practice
Dual Relationship

A situation in which a counselor holds another significant role with a client, such as friend, employer, or relative; these relationships risk exploitation and are generally prohibited or carefully managed.

Related: Ethical Standards, Clinical Supervision
Scope of Practice

The boundaries of what a counselor is trained, credentialed, and legally permitted to do, requiring referral to other professionals for services outside those limits.

Related: Ethical Standards, Clinical Supervision, Case Management
Clinical Supervision

Structured oversight by a qualified supervisor who reviews cases, develops counselor skills, ensures ethical care, and provides accountability and support to the supervisee.

Related: Countertransference, Burnout
Countertransference

A counselor's own unresolved feelings, attitudes, or reactions toward a client that can distort judgment and objectivity, and that should be recognized and addressed in supervision.

Related: Clinical Supervision, Dual Relationship
Burnout

A state of emotional exhaustion, detachment, and reduced sense of accomplishment resulting from chronic work stress, addressed through self-care, support, and workload adjustments.

Related: Clinical Supervision