CATC key terms
CATC · Get comfortable with the vocabulary.
- Tolerance
- Related: Withdrawal, Dependence
A reduced response to a substance after repeated use, so the person needs larger amounts or more frequent use to feel the same effect. It is a physiological sign of adaptation, not a moral failing.
- Withdrawal
- Related: Tolerance, Dependence, Detoxification
A cluster of physical and psychological symptoms that appears when a substance is reduced or stopped after heavy or prolonged use. Symptoms vary by substance and can range from uncomfortable to medically dangerous.
- Dependence
- Related: Tolerance, Withdrawal, Craving
A pattern of physiological and psychological adaptation to a substance, marked by tolerance, withdrawal, and compulsive use despite harm. Dependence can be physical, psychological, or both, and it is distinct from abuse.
- Craving
- Related: Trigger, Relapse
An intense, often sudden urge to use a substance. Cravings can be triggered by people, places, emotions, or sensory cues and are a common driver of relapse in early recovery.
- Relapse
- Related: Craving, Trigger, Relapse Prevention
A return to substance use after a period of abstinence or reduced use. In treatment it is treated as a process with warning signs rather than a single event or moral failure.
- Trigger
- Related: Craving, Relapse Prevention
A person, place, situation, emotion, or sensory cue that activates craving or increases the likelihood of substance use. Identifying triggers is a core skill in relapse prevention planning.
- Relapse Prevention
- Related: Trigger, Craving, Relapse
A structured set of strategies that help a person recognize early warning signs, manage high-risk situations, and use coping skills to avoid returning to substance use. It is often taught in group and individual sessions.
- Detoxification
- Related: Withdrawal, Medication-Assisted Treatment
The medically supervised process of clearing a substance from the body and managing withdrawal safely. Detox alone is not treatment; it is a first step that should be followed by ongoing therapy and support.
- Medication-Assisted Treatment (MAT)
- Related: Detoxification, Opioid Use Disorder
The use of FDA-approved medications, combined with counseling and behavioral therapies, to treat substance use disorders. Examples include methadone, buprenorphine, and naltrexone for opioid use disorder.
- Opioid Use Disorder
- Related: Medication-Assisted Treatment, Dependence
A problematic pattern of opioid use causing significant impairment or distress, with features such as craving, tolerance, withdrawal, and continued use despite harm. It is a chronic, treatable condition.
- Co-occurring Disorders
- Related: Screening, Assessment
The presence of a substance use disorder together with at least one mental health disorder in the same person. Effective treatment addresses both conditions at the same time rather than sequentially.
- Screening
- Related: Assessment, Co-occurring Disorders
A brief, structured process used to identify people who may have a substance use or mental health problem and need further evaluation. Screening does not diagnose; it flags the need for a full assessment.
- Assessment
- Related: Screening, Treatment Plan
A comprehensive, ongoing process of gathering information about a person's substance use, health, history, and needs to guide treatment planning. It is broader and more detailed than screening.
- Treatment Plan
- Related: Assessment, Case Management
A written, individualized document that states a person's goals, objectives, and the specific services and interventions to be provided. It is developed with the client and updated as needs change.
- Motivational Interviewing
- Related: Stages of Change, Contemplation
A collaborative, person-centered counseling style that helps clients resolve ambivalence about change by exploring and strengthening their own reasons for change. It avoids confrontation and respects client autonomy.
- Stages of Change
- Related: Motivational Interviewing, Contemplation
A model describing readiness to change in stages: precontemplation, contemplation, preparation, action, maintenance, and sometimes relapse. Interventions are matched to the person's current stage.
- Contemplation
- Related: Stages of Change, Motivational Interviewing
The stage of change in which a person is aware of a problem and is thinking about change but has not yet committed to action. Ambivalence is a hallmark of this stage.
- Cognitive Behavioral Therapy (CBT)
- Related: Relapse Prevention, Trigger
A structured therapy that helps clients identify and change unhelpful thoughts and behaviors linked to substance use. It teaches practical coping skills and is widely used in addiction treatment.
- Contingency Management
- Related: Cognitive Behavioral Therapy (CBT), Treatment Plan
A behavioral approach that provides concrete, verifiable rewards for desired behaviors such as negative drug tests or attendance. It is evidence-based, especially for stimulant use disorders.
- Twelve-Step Program
- Related: Mutual-Help Group, Relapse Prevention
A peer-led mutual-help approach, such as Alcoholics Anonymous, based on a set of spiritual and behavioral principles for recovery. It is often used alongside professional treatment, not as a replacement for it.
- Mutual-Help Group
- Related: Twelve-Step Program, Relapse Prevention
A voluntary, peer-run support group in which people with shared experiences help one another. Examples include twelve-step groups and SMART Recovery, and participation is generally free.
- Case Management
- Related: Treatment Plan, Assessment
A service that coordinates care, links clients to needed resources, and monitors progress across systems such as health, housing, and legal services. It supports continuity and reduces barriers to treatment.
- Harm Reduction
- Related: Naloxone, Relapse Prevention
A public health approach that aims to reduce the negative consequences of substance use without requiring abstinence. Examples include naloxone distribution, sterile syringes, and safer-use education.
- Naloxone
- Related: Harm Reduction, Opioid Use Disorder
A medication that rapidly reverses an opioid overdose by blocking opioid receptors. It is safe, non-addictive, and can be administered by laypeople, making it a key harm reduction tool.
- Confidentiality
- Related: Informed Consent, Mandated Reporting
The ethical and legal duty of treatment providers to protect client information from unauthorized disclosure. It is a foundation of the therapeutic relationship and is limited by specific legal exceptions.
- Informed Consent
- Related: Confidentiality, Boundaries of Competence
The process of giving a client clear, accurate information about treatment, risks, benefits, and alternatives so they can voluntarily agree to participate. It must be documented and can be withdrawn.
- Mandated Reporting
- Related: Confidentiality, Duty to Warn
A legal requirement that certain professionals report suspected child abuse, neglect, or other specified harms to authorities. Counselors must know their state's rules and explain limits of confidentiality to clients.
- Duty to Warn
- Related: Mandated Reporting, Confidentiality
A legal and ethical obligation, in some jurisdictions, to take steps to protect an identifiable person when a client poses a serious threat of violence. The specific actions required vary by state law.
- Scope of Practice
- Related: Boundaries of Competence, Supervision
The range of services and activities a professional is legally and ethically permitted to perform based on their training, credentials, and licensure. Working outside it can harm clients and lead to discipline.
- Boundaries of Competence
- Related: Scope of Practice, Supervision
The ethical limit of a counselor's knowledge and skills. Counselors should practice only within areas they are trained in and seek supervision or referral when a client's needs exceed their competence.
- Dual Relationship
- Related: Boundaries of Competence, Informed Consent
When a counselor has another significant role with a client, such as business partner, friend, or family member. Such relationships risk exploitation and are generally avoided or carefully managed.
- Supervision
- Related: Scope of Practice, Boundaries of Competence
A structured relationship in which a more experienced clinician oversees and guides a counselor's work to ensure quality and ethical practice. It supports skill development and protects clients.
- Privileged Communication
- Related: Confidentiality, Informed Consent
A legal protection that prevents certain confidential communications, such as those between client and counselor, from being disclosed in court without the client's consent. Its scope varies by jurisdiction.
- Ethical Decision-Making
- Related: Scope of Practice, Supervision
A deliberate process for resolving ethical dilemmas by identifying the problem, consulting codes and laws, considering options, and choosing and reviewing an action. It is often documented and discussed with supervisors.
- Client Records
- Related: Confidentiality, Privileged Communication
Written or electronic documentation of a client's assessment, treatment, and progress. Records must be accurate, kept secure, and released only with proper authorization or legal requirement.