Substance-Related Disorders

Substance-Related Disorders

Vocabulary of Terms

  • Substance: Drug of abuse, a medication, or a toxin.

  • Substance use: Ingestion of any chemical that affects the body.

  • Abused substances: Chemicals that alter the individual’s perception by affecting the central nervous system (CNS).

  • Substance (drug) abuse: Excessive use of a substance that differs from societal norms.

  • Habituation: An individual depends on a substance to provide pleasure or relief.

  • Substance (chemical) dependency: A user must take his or her usual dose of the drug to prevent the onset of withdrawal signs and symptoms.

  • Addiction: Individual’s dependence on the substance is physical.

  • Abstinence: An addicted individual is not using an addictive substance.

Substance Use and Age

Overview
  • Substance use occurs throughout the life cycle, from fetuses to older adults.   

Pregnancy and Infancy
  • Risks associated with pregnant women: There are no safe drugs for pregnant women.

  • Excessive alcohol use:
      - Can result in fetal alcohol syndrome (FAS).
      - Children with FAS are characterized by smaller size, smaller heads, and failure to develop normally.

  • Cocaine use:
      - Infants exposed to cocaine in utero may exhibit sleeping and eating problems, unusual levels of irritation, and high-pitched cries.

Childhood and Adolescence
  • Children also abuse substances, typically legal and accessible.

  • Alcohol: Most frequently abused drug among adolescents.

  • Patterns of adolescent substance abuse include experimentation and usage in social settings for relaxation or intoxication.

  • Teens with addiction are prone to illegal activities.

Adulthood
  • Substance abuse is prevalent in adults.

  • Approximately 10% of the adult population regularly abuses alcohol.

  • Patterns of substance abuse can vary across minority groups:
      - Cocaine: More common among African Americans.
      - Alcohol: Preferred by White and Hispanic individuals.

Scope of the Problem Today

  • Substance abuse incurs significant financial and human costs.

  • Many deaths from falls, drowning, and burns are connected to alcohol and drug use.

  • Individuals with serious mental illness who also abuse chemicals are said to have a dual diagnosis.

Chemicals of Abuse

Alcohol
  • Effect: Alcohol exerts a depressant effect on the CNS.

  • Intoxication symptoms:
      - Slurred speech
      - Unsteady gait
      - Lack of coordination
      - Impaired attention/memory/judgment

  • Overdose risks:
      - Vomiting, unconsciousness, and respiratory depression.
      - Complications may lead to aspiration pneumonia or pulmonary obstruction.   - Alcohol-induced hypotension can result in cardiovascular shock and death.

  • Treatment of overdose:
      - Options include gastric lavage or dialysis and supporting respiratory and cardiovascular function.

Narcotics
  • Classification: CNS depressants present naturally, semi-synthetically, and synthetically.

  • Examples:
      - Naturally occurring: Opium, morphine
      - Semi-synthetic: Heroin, hydromorphone, thebaine derivatives.

Stimulants
  • Commonly abused stimulants:
      - Caffeine
      - Cocaine, crack
      - Prescription medications (e.g., amphetamines, appetite suppressants, methylphenidate (Ritalin), cannabis).

Hallucinogens
  • Comprised of natural and synthetic substances that alter reality perception.

  • Examples:
      - Peyote cactus, mescaline
      - Lysergic acid diethylamide (LSD)
      - Psilocybin
      - Phencyclidine (PCP)

  • Users may experience varying effects from profound insights to “bad trips.”

Designer Drugs
  • Cocaine and Crack: Commonly abused varieties.

  • Designer drugs: Created by manipulating the molecular structure of existing drugs.

  • Examples: MDMA (Ecstasy), STP, “Ice.”

Other Medications
  • Many therapeutic drugs can be abused.

  • Examples:
      - Morphine, hydromorphone
      - Amphetamines
      - Methylphenidate (Ritalin)
      - Diazepam (Valium), laxatives, diuretics.

Inhalants
  • Definition: Volatile substances or chemical gases inhaled for their effects.

  • Examples: Alcohol solvents, gasoline, glue, paint thinner, and nicotine.

  • Complications: Can lead to significant health risks including sudden death, respiratory depression, hyperactive motor responses, loss of coordination, and seizures.

Characteristics of Substance Use and Abuse

Causes of Substance Abuse
  • Unknown origins: Causes are not definitively known.

  • Biological theories: Suggest variations among ethnic groups provide genetic and biochemical explanations for substance abuse.

  • Psychological theories: Personality and emotional problems may lead to substance abuse.

  • Environmental theories: Include the individual, family, and sociocultural surroundings affecting substance abuse.

Stages of Addiction
  1. Early stage: The individual can still use without adverse effects.

  2. Middle stage: Increased intoxication episodes occur as the body adapts; tolerance develops, needing more for the same effect.

  3. Chronic (late) stage: High tolerance, leading to loss of control over behavior associated with substance use.

Criteria for Diagnosis

  • Individuals must meet specific criteria:
      - The substance use pattern must be disabling, leading to impaired functioning and distress.
      - Signs of tolerance, withdrawal, and dependence must be exhibited.

Guidelines for Intervention

Assessment Focus Areas
  • Central nervous system

  • Head and neck

  • Chest and abdomen

  • Skin

  • Nutritional status

  • General appearance

  • Behaviors

  • Emotional state

  • Social support

  • Motivation

  • Diagnostic testing

Treatment Models
  1. Disease model: Considers substance abuse a disease requiring treatment.

  2. 12-step process: Focuses on admitting powerlessness and seeking help from a higher power.

  3. Medical model: Views addiction as a public health issue, considering both chronic and acute diseases.

  4. Psychiatric models: See substance abuse as an expression of underlying emotional or mental disorders.

  5. Sociocultural models: Emphasize changing environmental factors to treat substance abuse.

Relapse
  • Definition: The recurrence of substance-abusing behaviors after a period of abstinence.

  • Individuals who relapse often experience distressing emotions.

Nursing/Therapeutic Process
  • Nursing diagnoses for clients with substance abuse problems are based on identified issues and goals.

  • Care plans must be tailored individually for each client, recognizing the challenges and frustrations of treating substance-related problems.