NLE Psychiatric Disorders — Substance Use and Addictive DisordersDetailed Explanation

Core Terminology: Tolerance, Dependence, and Addiction

These three terms are among the most commonly confused in NLE items. Understanding their distinctions is foundational before studying any specific substance. **Tolerance** is a purely physiologic phenomenon. The body's neurons adapt (neuroadaptation) to the continued presence of a substance, requiring progressively larger doses to achieve the same effect. Example: A patient who initially needed 5 mg of opioid for pain relief now needs 15 mg for the same relief. Tolerance alone does NOT mean the patient is an addict. **Physical Dependence** means the body has adapted so thoroughly that removing the substance triggers a withdrawal syndrome — a cluster of physical symptoms reflecting the body's attempt to re-establish equilibrium without the substance. Importantly, dependence can occur in a patient who takes a medication exactly as prescribed (e.g., a patient on long-term corticosteroids or opioid analgesics). Dependence does NOT equal addiction. **Addiction (Substance Use Disorder per DSM-5)** is the behavioral and psychological pattern of compulsive use, craving, loss of control, and continued use despite significant harm to one's health, relationships, work, and life. This is what constitutes the psychiatric diagnosis. **Withdrawal** is the cluster of symptoms that appears when a substance is reduced or stopped after chronic use. The nature of withdrawal is almost always the OPPOSITE of the substance's primary effect — CNS depressants (alcohol, opioids, sedatives) produce an excitatory rebound withdrawal; CNS stimulants produce a depressive/crash withdrawal. **Intoxication** is the reversible, substance-specific syndrome produced by RECENT ingestion — what the substance does to the body acutely. **Codependency** describes a dysfunctional pattern in family members who enable the substance user, often at their own expense — rescuing, covering up, or taking over responsibilities for the person. **Dual Diagnosis** means the patient has BOTH a substance use disorder AND another psychiatric condition (e.g., schizophrenia + alcohol use disorder). This complicates treatment and is frequently tested.

Alcohol Use Disorder: Intoxication and the Withdrawal Timeline

Alcohol is a **CNS depressant** — it enhances the inhibitory neurotransmitter GABA and suppresses the excitatory neurotransmitter glutamate. Chronic alcohol use causes the brain to compensate by DOWN-regulating GABA and UP-regulating glutamate. When alcohol is suddenly removed, this compensation becomes unmasked — the result is a CNS EXCITATION storm that can be fatal. **Alcohol Intoxication:** Signs and symptoms include slurred speech, unsteady gait (ataxia), nystagmus (rhythmic eye movements), impaired judgment, disinhibited behavior, and mood changes. Severe intoxication causes respiratory depression, stupor, and coma. The PRIORITY nursing concern in severe intoxication is AIRWAY PROTECTION — the patient can aspirate vomit. Position the patient in a lateral (recovery) position. Monitor breathing continuously. **THE ALCOHOL WITHDRAWAL TIMELINE (HIGH-YIELD NLE):** This timeline is tested repeatedly. Memorize it as a sequence: 1. **6–12 hours** after last drink — EARLY WITHDRAWAL: Tremors ('the shakes'), anxiety, irritability, nausea and vomiting, diaphoresis (sweating), tachycardia, hypertension, and insomnia. This is the most common stage many patients experience. 2. **12–24 hours** — ALCOHOLIC HALLUCINOSIS: Predominantly visual and tactile hallucinations (seeing bugs, small animals, or frightening images). CRITICAL DISTINCTION: The patient's SENSORIUM IS CLEAR — they are oriented and aware that the hallucinations are not real. This differentiates alcoholic hallucinosis from delirium tremens. 3. **24–48 hours** — WITHDRAWAL SEIZURES ('Rum Fits'): Generalized tonic-clonic seizures. These occur WITHOUT a prior seizure history. They are a medical emergency requiring immediate intervention and seizure precautions. 4. **48–72 hours** — DELIRIUM TREMENS (DTs): The most severe, most dangerous stage. Peak occurrence is between 48–72 hours after the last drink. Characterized by profound autonomic hyperactivity AND delirium (clouded consciousness). **Why is this timeline so important for NLE?** Because the nurse must anticipate WHEN each complication will occur and have interventions ready BEFORE they happen — this is the PLANNING phase of the nursing process.

Delirium Tremens (DTs): Assessment and Emergency Management

Delirium tremens (DTs) is the MOST SEVERE and LIFE-THREATENING manifestation of alcohol withdrawal. It represents a medical emergency requiring immediate intervention. The nurse's ability to recognize, respond to, and manage DTs is heavily tested on the NLE. **When does it occur?** DTs typically peak at **48–72 hours** after the last drink but can appear up to 7–10 days in some patients. **Classic Clinical Features of Delirium Tremens:** 1. **Severe Autonomic Hyperactivity:** - Marked tachycardia (HR may exceed 120–150 bpm) - Severe hypertension - Hyperthermia (elevated temperature — a dangerous sign) - Profuse diaphoresis (drenching sweats) 2. **Profound Delirium:** - CONFUSION and DISORIENTATION (unlike alcoholic hallucinosis, the sensorium is CLOUDED) - Agitation and psychomotor restlessness - Inability to maintain attention 3. **Vivid, Frightening Hallucinations:** - Predominantly VISUAL: seeing terrifying images, monsters - TACTILE: sensation of bugs/insects crawling on or under the skin (formication) - The patient BELIEVES the hallucinations are REAL (no insight — unlike hallucinosis) **Priority Nursing Interventions for DTs:** 1. **ENSURE A SAFE ENVIRONMENT** — This is the TOP nursing priority. Use a quiet, well-lit room (darkness intensifies misperceptions). Institute fall precautions. Maintain constant observation. Avoid restraints if possible as they increase agitation; if necessary, use with orders. 2. **MONITOR VITAL SIGNS FREQUENTLY** — Autonomic instability can progress to cardiovascular collapse. Watch especially for hyperthermia (a red flag for severity). 3. **ADMINISTER BENZODIAZEPINES AS ORDERED** — This is the first-line pharmacologic treatment (diazepam, lorazepam, chlordiazepoxide). They substitute for alcohol's CNS-depressant effect and calm the hyperexcitable nervous system. 4. **INSTITUTE SEIZURE PRECAUTIONS** — Padded side rails, suction available, nothing by mouth (NPO) until stable, oxygen at bedside. 5. **MAINTAIN FLUID AND ELECTROLYTE BALANCE** — Hyperthermia + diaphoresis = significant fluid loss. Monitor IV fluids carefully. Remember: THIAMINE is given with or before IV fluids. 6. **PROVIDE REORIENTATION AND REASSURANCE** — Use calm, clear, gentle communication. Do not argue with hallucinations but do not reinforce them either. State: 'I know this seems very real to you, but you are safe. I am your nurse.' **PHARMACOLOGIC MANAGEMENT:** - **Benzodiazepines (FIRST-LINE / DRUG OF CHOICE):** - **Diazepam (Valium)** — long-acting, good for smooth withdrawal - **Lorazepam (Ativan)** — PREFERRED when the patient has LIVER DISEASE (hepatically impaired) because it undergoes direct conjugation, bypassing liver metabolism - **Chlordiazepoxide (Librium)** — also used - Dosing is guided by the CIWA-Ar score (symptom-triggered approach) - Monitor for: oversedation, respiratory depression - **Thiamine (Vitamin B1)** — ALWAYS before or with IV glucose - **Magnesium sulfate** — replaces deficiencies and raises the seizure threshold - **Haloperidol** may be added for severe agitation/psychosis (but benzodiazepines remain the FOUNDATION)

CIWA-Ar Assessment and Wernicke-Korsakoff Syndrome

**CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol, Revised)** The CIWA-Ar is a validated, standardized nursing assessment tool that measures the SEVERITY of alcohol withdrawal across 10 clinical items. It is the gold standard for guiding benzodiazepine therapy in alcohol withdrawal. **The 10 CIWA-Ar Items:** 1. Nausea/Vomiting 2. Tremor 3. Diaphoresis (sweating) 4. Anxiety 5. Agitation 6. Tactile disturbances (tingling, bugs crawling) 7. Auditory disturbances 8. Visual disturbances 9. Headache/fullness in head 10. Orientation/clouding of sensorium **Scoring Interpretation:** - Score 0–9: Minimal withdrawal — monitor; medications may not be needed - Score 10–19: Moderate withdrawal — benzodiazepines indicated - Score ≥20: Severe withdrawal / DTs — aggressive benzodiazepine therapy required **Symptom-Triggered Dosing:** Medications are given WHEN the score reaches a threshold (usually ≥8–10), NOT on a fixed schedule. This approach prevents BOTH under-treatment (missed severe withdrawal) AND over-treatment (excessive sedation). --- **Wernicke-Korsakoff Syndrome** Chronic alcohol use causes THIAMINE (Vitamin B1) DEFICIENCY because: 1. Alcoholics often have poor nutrition (thiamine-poor diet) 2. Alcohol directly impairs thiamine absorption and utilization Thiamine is essential for glucose metabolism in the brain. Without it, neurons die — especially in areas like the mammillary bodies and periventricular regions. This leads to a TWO-PHASE disorder: **PHASE 1: Wernicke's Encephalopathy — ACUTE and REVERSIBLE (if treated promptly)** Classic TRIAD (remember: COA — Confusion, Ophthalmoplegia, Ataxia): 1. **Confusion** — altered mental status, inability to think clearly 2. **Ophthalmoplegia** — abnormal eye movements: nystagmus (rhythmic horizontal eye movements), lateral gaze palsy, or complete paralysis of eye movement 3. **Ataxia** — unsteady, wide-based gait; cerebellar dysfunction Treatment: **IMMEDIATE IV/IM thiamine** — this is a medical emergency. If treated promptly, the encephalopathy can REVERSE. **PHASE 2: Korsakoff's Syndrome (Korsakoff's Psychosis) — CHRONIC and LARGELY IRREVERSIBLE** This develops when Wernicke's goes untreated or is inadequately treated. Hallmarks: 1. **Profound SHORT-TERM MEMORY LOSS** (anterograde amnesia — cannot form new memories) 2. **CONFABULATION** — the patient unconsciously FABRICATES information to fill memory gaps. The patient is NOT lying deliberately; they are unaware their memories are fabricated. - Example: Ask 'What did you eat for breakfast?' and the patient confidently describes a detailed meal they never had. Korsakoff's is largely irreversible — most patients require long-term care. **THE CRITICAL NURSING RULE: THIAMINE BEFORE GLUCOSE** In ANY patient suspected of alcoholism or malnutrition, ALWAYS administer THIAMINE before or WITH IV glucose (dextrose). Why? - Administering glucose FIRST rapidly consumes the brain's remaining thiamine stores - This can PRECIPITATE or WORSEN Wernicke's encephalopathy in an already thiamine-depleted brain - Even if the patient is hypoglycemic, give thiamine IV push FIRST, then follow with dextrose This rule is repeatedly tested on the NLE as a priority nursing action question.

Disulfiram and Other Medications for Alcohol Dependence

Pharmacologic management of alcohol use disorder extends beyond the acute withdrawal phase. Several medications help patients maintain abstinence and reduce cravings during rehabilitation. **DISULFIRAM (Antabuse) — Aversion Therapy** Disulfiram is a medication that creates a strongly unpleasant physiologic reaction when alcohol is consumed, using the principle of aversive conditioning to discourage drinking. **Mechanism:** Disulfiram inhibits the enzyme **aldehyde dehydrogenase** — the enzyme responsible for metabolizing acetaldehyde (a toxic byproduct of alcohol metabolism) into harmless acetic acid. When a patient on disulfiram drinks alcohol: - Alcohol → Acetaldehyde (accumulates to toxic levels) → SEVERE REACTION **The Disulfiram-Alcohol Reaction:** - Intense facial flushing and redness - Throbbing headache - Severe nausea and vomiting - Tachycardia and palpitations - Hypotension (can be severe — cardiovascular collapse in extreme cases) - Dyspnea and chest pain - Anxiety and sense of impending doom - This reaction can begin within 5–10 minutes of alcohol ingestion **CRITICAL PATIENT TEACHING — HIDDEN SOURCES OF ALCOHOL:** This is the most frequently tested nursing teaching point about disulfiram. Patients must be taught to AVOID ALL SOURCES of alcohol, including: 1. **Oral products:** Mouthwash (many contain 25–75% alcohol), cough syrups, elixirs, herbal tinctures, liquid vitamins 2. **Topical products:** Aftershave, perfumes, colognes, some hand sanitizers, rubbing alcohol on the skin 3. **Food products:** Vinegar and vinegar-containing foods (atsara, sawsawan), cooking wine, certain sauces, soy-based sauces, fermented products 4. **Medications:** Some IV medications contain alcohol as a vehicle **Other important teaching points:** - The reaction can occur from TOPICAL or INHALED alcohol (not just ingested) - The reaction may persist for hours and can occur even DAYS to WEEKS after stopping disulfiram (remains in system up to ~2 weeks) - Disulfiram requires FULL INFORMED CONSENT and patient MOTIVATION — it only works when the patient actively chooses to take it - Do NOT give to patients who are psychotic, suicidal, or unable to understand the risks **OTHER MEDICATIONS FOR ALCOHOL USE DISORDER:** 1. **Naltrexone (ReVia, Vivitrol)** — An opioid antagonist that REDUCES CRAVINGS for alcohol by blocking the euphoric effects of alcohol in the brain's reward pathway. No aversive reaction; simply makes drinking less rewarding. Available as oral daily dose or monthly injection (Vivitrol). 2. **Acamprosate (Campral)** — Reduces WITHDRAWAL-RELATED ANXIETY and dysphoria by modulating GABA/glutamate balance. Best used AFTER detoxification is complete. Reduces the discomfort of abstinence that drives relapse. 3. **Thiamine, Folic acid, Multivitamins** — Nutritional support, always included in the treatment protocol.

Opioid, Stimulant, and Sedative-Hypnotic Use Disorders

**OPIOID USE DISORDER** Opioids (heroin, morphine, codeine, fentanyl, and prescription pain medications) are CNS DEPRESSANTS that activate opioid receptors, producing analgesia, euphoria, and respiratory depression. **Opioid Intoxication/Overdose — Classic Triad (HIGH-YIELD):** 1. **Pinpoint (miotic/constricted) pupils** — very small, pin-sized pupils 2. **Respiratory depression** — slow, shallow breathing; this is the LETHAL component 3. **Decreased level of consciousness** — from sedation to stupor to coma Priority danger: RESPIRATORY ARREST Antidote: **NALOXONE (Narcan)** — a pure opioid antagonist - Acts rapidly (within 2 minutes IV) - Is SHORT-ACTING — patient may re-sedate after naloxone wears off (30–90 min); MUST monitor and repeat as needed - Can PRECIPITATE ACUTE WITHDRAWAL in opioid-dependent patients — prepare for agitation, vomiting, diaphoresis - Continue monitoring even after patient awakens **Opioid Withdrawal — Uncomfortable but NOT Life-Threatening:** (Opposite of intoxication) - Dilated (mydriatic) pupils - Yawning, lacrimation, rhinorrhea ('runny nose/tears') - Piloerection ('goose bumps') — hence the term 'cold turkey' - Muscle aches and cramping (myalgias) - Abdominal cramping, diarrhea, nausea, vomiting - Restlessness, insomnia, anxiety, intense craving - TIMELINE: Begins 6–12 hours after last heroin dose; peaks 36–72 hours; may last 5–7 days **Management of opioid withdrawal:** - **Methadone** — long-acting opioid agonist; used for medically supervised withdrawal and maintenance (prevents withdrawal without euphoria at therapeutic doses) - **Buprenorphine (Suboxone)** — partial opioid agonist; used for maintenance; ceiling effect reduces overdose risk - **Clonidine** — alpha-2 agonist that reduces autonomic symptoms (sweating, tachycardia, diarrhea, anxiety) by decreasing norepinephrine release --- **STIMULANT USE DISORDER (Cocaine and Methamphetamine/'Shabu')** In the Philippines, METHAMPHETAMINE ('shabu') is the most prevalent illegal stimulant and a major public health concern under RA 9165. Stimulants produce CNS EXCITATION. **Stimulant Intoxication:** - Euphoria, heightened alertness and energy, grandiosity - **DILATED (mydriatic) pupils** — opposite of opioids - **Tachycardia, hypertension, hyperthermia** — cardinal signs - Decreased appetite, insomnia - **SEVERE COMPLICATIONS:** Seizures, cardiac dysrhythmias, myocardial infarction (cocaine especially), stroke, **PSYCHOSIS** (paranoia, hallucinations — can mimic schizophrenia) **Nursing Management of Stimulant Intoxication:** - Calm, quiet, low-stimulation environment to reduce agitation - Monitor and control hyperthermia (cooling measures) - Control hypertension and seizures as ordered - Monitor cardiac rhythm - DO NOT leave patient alone — high risk of self-harm due to paranoia **Stimulant Withdrawal ('Crash'):** - Opposite of intoxication: profound fatigue, hypersomnia (excessive sleeping), intense hunger, depression, anhedonia, intense craving - **KEY CONCERN: HIGH RISK FOR SUICIDE during the 'crash' phase** — the severe depression and dysphoria can become overwhelming - There is NO specific pharmacologic treatment for stimulant withdrawal; management is SUPPORTIVE --- **SEDATIVE-HYPNOTIC USE DISORDER** Benzodiazepines and barbiturates are CNS DEPRESSANTS like alcohol. Their withdrawal CLOSELY MIRRORS ALCOHOL WITHDRAWAL and is EQUALLY LIFE-THREATENING. **Critical Rule: NEVER ABRUPTLY STOP benzodiazepines or barbiturates in a chronic user.** Withdrawal includes: anxiety, tremors, diaphoresis, tachycardia, hypertension, and the most dangerous complications — SEIZURES and DELIRIUM. **Management:** Gradual, supervised TAPER (never abrupt cessation). Benzodiazepines are used to taper benzodiazepine/barbiturate withdrawal as well. **Flumazenil (Romazicon):** - Reverses BENZODIAZEPINE overdose (competitive antagonist at GABA receptor) - CAUTION: Can PRECIPITATE SEIZURES, especially in patients with benzodiazepine dependence - Short-acting — re-sedation may occur - NOT used routinely in benzodiazepine-dependent patients for withdrawal **Barbiturate overdose** is particularly dangerous: very narrow margin between therapeutic and toxic/lethal dose.

Rehabilitation, Nursing Approach, and RA 9165

**REHABILITATION: THE RECOVERY CONTINUUM** Recovery from substance use disorder is a long-term process. It is not completed after detoxification — detox is just the FIRST STEP. **Three Phases of Recovery:** 1. **DETOXIFICATION** — The medical management of acute withdrawal. Goal: Safe, comfortable withdrawal. May require inpatient medical supervision (especially for alcohol and sedatives). Does NOT by itself address the addiction — it only treats physical dependence. 2. **REHABILITATION** — The therapeutic core of recovery. Involves: - Individual psychotherapy (Cognitive-Behavioral Therapy is most evidence-based) - Group therapy - Building coping skills and relapse prevention strategies - Identifying and managing triggers - Life-skill restructuring and reintegration 3. **MAINTENANCE AND SUPPORT** — Long-term, community-based support systems: - **Alcoholics Anonymous (AA)** — 12-step self-help program for alcohol use disorder; peer support; spiritually-based but not religious; uses the concept of 'one day at a time' - **Narcotics Anonymous (NA)** — 12-step program for drug use disorders - **Al-Anon** — Support group for FAMILY MEMBERS of alcoholics (not the patient themselves) - **Alateen** — For teenagers who are children of alcoholics **THE THERAPEUTIC NURSING STANCE:** The nurse's approach to patients with substance use disorders requires specific therapeutic qualities. This is frequently tested: - **FIRM**: Set clear, consistent limits. Do not allow manipulation. - **CONSISTENT**: Apply rules and expectations uniformly; do not make exceptions. - **NON-JUDGMENTAL**: Separate the person from the behavior. Accept the patient; address the behavior. - **AVOID ENABLING**: Do not rescue, cover up, or remove natural consequences for the patient. Enabling perpetuates the disorder. - **CONFRONT DENIAL**: Substance users often use denial (not acknowledging they have a problem), rationalization ('I can stop whenever I want'), and minimization ('It's not that bad'). The nurse must therapeutically but firmly confront these defenses. - **AVOID RESCUING**: Allow the patient to experience natural consequences of their behavior — this motivates change. - **ENCOURAGE RESPONSIBILITY**: Help the patient take ownership of their choices and recovery. - **INVOLVE THE FAMILY**: Address codependency; educate family members; refer to Al-Anon. --- **REPUBLIC ACT 9165 — COMPREHENSIVE DANGEROUS DRUGS ACT OF 2002** RA 9165 is the primary Philippine law governing dangerous drugs. Key nursing-relevant provisions: **Key Government Bodies Created by RA 9165:** - **Dangerous Drugs Board (DDB)** — the POLICY-MAKING and coordinating body. Sets national drug abuse prevention policy. - **Philippine Drug Enforcement Agency (PDEA)** — the primary ENFORCEMENT and IMPLEMENTING agency. Conducts drug operations, prosecutions, and oversees rehabilitation programs. **Key Provisions Relevant to Nursing:** 1. **Treatment and Rehabilitation:** RA 9165 recognizes the drug dependent as a person in need of treatment and rehabilitation, not just punishment. It provides for: - **Voluntary Submission Program** — a drug dependent may voluntarily submit themselves for treatment to avoid criminal charges for drug use - **Court-ordered Rehabilitation** — courts may order rehabilitation instead of imprisonment for first-time drug offenders 2. **Confidentiality of Records:** Records of drug-dependent patients undergoing treatment and rehabilitation are CONFIDENTIAL. The nurse has a legal obligation to protect this information (aligns with RA 9173 professional nursing standards and medical records confidentiality). 3. **Mandatory Drug Testing:** Required for specific populations including applicants for driver's license, firearms license, students in secondary/tertiary schools, officers and employees of public/private offices, persons charged with crimes, and candidates for public office. 4. **Penalties:** Sets penalties for importation, sale, manufacture, cultivation, possession, and use of dangerous drugs. Nurses must know that penalties are severe, especially for trafficking. 5. **The Nurse's Role Under RA 9165:** Nurses participate in drug testing, screening, treatment, rehabilitation programs, health education, and community prevention. Under RA 9173 (Philippine Nursing Act), nurses must practice within the legal framework including compliance with RA 9165. **Connection to RA 9173 (Philippine Nursing Act of 2002):** RA 9173 mandates that nurses uphold professional, ethical, and legal standards. This includes maintaining patient confidentiality, practicing within their scope, participating in health education and disease prevention, and complying with all Philippine health laws including RA 9165.

This item tests: (1) correct identification of DTs using the timing and clinical features, (2) application of NANDA nursing diagnoses with related factors and defining characteristics, and (3) pharmacologic knowledge including the special consideration for hepatic disease. On the NLE, any question mentioning 'liver disease + alcohol withdrawal' should immediately trigger the answer 'LORAZEPAM.' The three nursing diagnoses are prioritized using Maslow: confusion/cognition, physical safety, then physiologic (fluid balance).

This item tests comprehensive patient education for disulfiram therapy. The NLE specifically tests whether nurses know that TOPICAL and INHALED sources (not just ingested alcohol) can trigger the reaction. The Philippine cultural context is important: vinegar (suka) and fermented condiments are staples in Filipino cooking and must be specifically addressed. Also remind the patient: disulfiram remains active for up to 2 weeks after stopping, so alcohol avoidance must continue after the last dose.

This is a classic, high-yield NLE priority nursing action question. The 'thiamine before glucose' rule is one of the most tested nursing actions in substance use disorders. The COA triad for Wernicke's encephalopathy is equally tested. If Wernicke's goes untreated, it progresses to irreversible KORSAKOFF'S SYNDROME characterized by profound short-term memory loss and confabulation. This question tests both the priority action AND the ability to recognize the consequence of NOT performing it.

This two-part question tests both stimulant intoxication management and the critical safety concern during the stimulant withdrawal crash. The Filipino phrase 'Wala na akong dahilan para mabuhay' must be immediately recognized as a suicidal statement. Suicide risk during the stimulant crash is one of the highest-yield NLE test points for stimulant use disorders. The priority nursing action sequence is: Safety first (remove means, 1:1 supervision) → Notify physician → Assess suicide plan.

This item tests legal knowledge — a key component of the NLE Psychiatric/Community Health Nursing examination. The DDB vs. PDEA distinction (policy vs. enforcement) is a common multiple-choice item. The voluntary submission program reflects the rehabilitative philosophy of RA 9165. The confidentiality provision is both a legal requirement under RA 9165 and a professional ethical obligation under RA 9173. Nurses must know both laws and how they interact.