Substance Use Disorders Practice Questions

Q: Which is NOT a common symptom of opioid withdrawal?

Seizures. ***Seizures*** - Seizures are **not typical** of opioid withdrawal; they are more characteristic of withdrawal from substances like **alcohol** or **benzodiazepines**. - Opioid withdrawal symptoms are primarily **autonomic** and **flu-like**, not neurological in the sense of causing seizures. *Yawning* - **Frequent yawning** is a common and early **autonomic symptom** of opioid withdrawal, indicating central nervous system overactivity. - It is often accompanied by other signs of hyperarousal and discomfort. *Insomnia* - **Insomnia** (difficulty sleeping) is a very common and distressing symptom during opioid withdrawal due to heightened central nervous system activity and generalized discomfort. - Patients often experience **restlessness** and an inability to achieve restful sleep. *Diarrhea* - **Diarrhea** is a prominent gastrointestinal symptom of opioid withdrawal, resulting from the cessation of opioid-induced slowing of gut motility. - This symptom reflects the **autonomic hyperactivity** caused by opioid cessation.

Q: Which of the following is NOT true about alcohol withdrawal?

Hallucinations occur on day 5. ***Hallucinations occur on day 5*** - **NOT TRUE** - Alcoholic hallucinosis typically occurs **12-24 hours** after the last drink, not on day 5 - Hallucinations are an **early-to-mid withdrawal symptom** that manifest well before day 5 - They can be **auditory, visual, or tactile** in nature - Day 5 would be far too late in the withdrawal timeline for hallucinations to first appear *Tremors are an early symptom* - TRUE - **Tremors** are one of the **earliest symptoms** of alcohol withdrawal - They appear within **6-12 hours** after the last drink - Often accompanied by anxiety, nausea, sweating, and increased heart rate *Delirium tremens appears after 48 hours* - TRUE - **Delirium tremens (DTs)** typically manifests **48-96 hours** (2-4 days) after cessation - Peak occurrence at **72-96 hours** - Characterized by profound **confusion**, disorientation, severe agitation, autonomic instability, and high mortality if untreated *Seizures occur within 24-48 hours* - TRUE - **Alcohol withdrawal seizures** typically occur **12-48 hours** after the last drink - May extend up to **72 hours** in some cases - Usually **generalized tonic-clonic seizures** - Can be an early indicator of severe withdrawal requiring medical intervention

Q: Which of the following is not associated with Korsakoff psychosis?

Ophthalmoplegia. ***Ophthalmoplegia*** - **Ophthalmoplegia** is a key feature of **Wernicke encephalopathy**, the acute phase preceding Korsakoff psychosis, but is not directly a symptom of Korsakoff psychosis itself. - While both conditions are linked to thiamine deficiency, **Korsakoff psychosis** primarily manifests as chronic memory deficits. *Amnesia* - **Anterograde amnesia** (inability to form new memories) and **retrograde amnesia** (loss of past memories) are defining characteristics of Korsakoff psychosis. - This severe memory impairment is a result of damage to areas like the **mammillary bodies** and **thalamus**. *Confabulation* - **Confabulation**, the fabrication of distorted or misinterpreted memories without an intention to deceive, is a common symptom in patients with Korsakoff psychosis. - This occurs as patients attempt to fill in gaps in their memory loss, often believing their own stories. *Polyneuropathy* - **Polyneuropathy**, nerve damage affecting multiple peripheral nerves, causing symptoms like pain, numbness, and muscle weakness, is associated with chronic **alcoholism** and **thiamine deficiency**. - While not a direct psychological symptom, it is frequently seen in the same patient population that develops Korsakoff psychosis due to shared etiology.

Q: A 40-year-old man presents with a history of regular and heavy alcohol use for 10 years and morning drinking for one year. The last alcohol intake was three days ago. On examination, the patient exhibits coarse tremors, visual hallucinations, and disorientation to time. What is the best medication to prescribe?

Diazepam. ***Diazepam*** - The patient's symptoms (tremors, visual hallucinations, disorientation) three days after his last drink are consistent with **delirium tremens (DTs)**, a severe form of alcohol withdrawal. - **Benzodiazepines** like diazepam are the first-line treatment for DTs as they act on GABA receptors to reduce neuronal hyperexcitability and prevent seizures. *Haloperidol* - **Haloperidol**, an antipsychotic, can worsen withdrawal symptoms and lower the seizure threshold in patients with alcohol withdrawal, making it an inappropriate first-line treatment. - While it can be used for psychotic symptoms, benzodiazepines are prioritized in alcohol withdrawal due to the risk of seizures and efficacy in managing the core withdrawal syndrome. *Imipramine* - **Imipramine** is a tricyclic antidepressant and is not indicated for the acute management of alcohol withdrawal or delirium tremens. - It would not address the acute physiological symptoms, such as tremors or potential seizures associated with alcohol withdrawal. *Naltrexone* - **Naltrexone** is an opioid antagonist used for alcohol *craving reduction* and relapse prevention in individuals with alcohol use disorder *after* detoxification. - It does not treat acute alcohol withdrawal symptoms and would not be effective in managing delirium tremens.

Q: A 28-year-old male with a history of heroin use is started on methadone maintenance therapy. What is the primary goal of this treatment?

To prevent withdrawal symptoms and reduce cravings. ***To prevent withdrawal symptoms and reduce cravings*** - **Methadone maintenance therapy** is a harm reduction approach designed to stabilize individuals with opioid use disorder. - Its primary goal is to **prevent unpleasant withdrawal symptoms** and significantly **reduce opioid cravings**, allowing patients to focus on recovery and integrate into society. *To achieve complete abstinence from all opioids* - While abstinence may be a long-term goal for some, the immediate and primary goal of methadone maintenance is not always complete opioid abstinence, but rather **stabilization and harm reduction**. - Methadone is itself an opioid, so this option doesn't accurately reflect the direct and initial aim of the therapy. *To induce aversion to opioid use* - Methadone does not induce an aversive reaction to opioids like **disulfiram** does for alcohol. - Its mechanism involves **agonist effects** at opioid receptors to manage dependence, not to create an unpleasant experience. *To substitute heroin with a safer opioid* - While methadone is a safer, legally prescribed opioid compared to illicit heroin, the primary goal goes beyond mere substitution. - It aims to provide a **stable pharmacological platform** for recovery by managing dependence and cravings, thus reducing the harms associated with illicit opioid use.

Q: A patient with a history of opioid addiction is given a drug for long-term relapse prevention in opioid use disorder. Which drug is most suitable for this purpose?

Naltrexone. ***Naltrexone*** - **Naltrexone** is an **opioid antagonist** that blocks opioid receptors, preventing both the euphoric and respiratory depressant effects of opioids. - It is used for **relapse prevention** in opioid use disorder by reducing cravings and blocking the effects of any opioids consumed. *Naloxone* - **Naloxone** is a short-acting **opioid antagonist**, primarily used to **reverse acute opioid overdose** by rapidly displacing opioids from receptors. - It is not typically used for long-term **relapse prevention** due to its short half-life and route of administration (injectable for overdose reversal). *Methadone* - **Methadone** is a **long-acting opioid agonist** used in opioid maintenance therapy to reduce cravings and withdrawal symptoms. - While it helps prevent relapse by stabilizing the patient, it is an **opioid itself** and can cause dependence, unlike naltrexone which is an antagonist. *Buprenorphine* - **Buprenorphine** is a **partial opioid agonist** used in opioid replacement therapy; it reduces cravings and withdrawal symptoms without producing the same high as full agonists. - It is similar to methadone in its use for maintenance therapy but is not a pure antagonist like naltrexone for blocking effects.

Q: A 45-year-old man with a long history of smoking presents with irritability, anxiety, and cravings for cigarettes after attempting to quit. What is the most appropriate treatment?

Bupropion. ***Bupropion*** - **Bupropion** is an antidepressant that acts as a **norepinephrine-dopamine reuptake inhibitor** and a non-competitive antagonist of neuronal nicotinic acetylcholine receptors, making it effective for reducing **nicotine cravings** and withdrawal symptoms. - Its use is indicated for **smoking cessation** and can also treat **depression**, which can be comorbid with smoking. **Amitriptyline** - **Amitriptyline** is a **tricyclic antidepressant** primarily used for treating depression, neuropathic pain, and migraines. - It is not a first-line treatment for **nicotine withdrawal** or **smoking cessation**. **Haloperidol** - **Haloperidol** is a **first-generation antipsychotic** used to treat psychosis, schizophrenia, and acute agitation. - It has a significant side effect profile, including **extrapyramidal symptoms**, and is not indicated for smoking cessation. **Alprazolam** - **Alprazolam** is a **benzodiazepine** primarily used to treat anxiety disorders and panic attacks. - While it can reduce anxiety, it is associated with **dependence** and **sedation** and is not recommended as a primary treatment for smoking cessation.

Q: In the context of substance use disorders, which of the following is a key criterion for diagnosing substance dependence?

Continued use despite harmful consequences. ***Continued use despite harmful consequences*** - This criterion highlights the **compulsive nature** of substance dependence, where the individual persists in substance use even when it leads to significant negative impacts on their physical health, psychological well-being, or social functioning. - It reflects a loss of control over substance use, indicative of a **pathological pattern** of behavior central to diagnosis. *Infrequent use of the substance* - Infrequent use generally suggests a low probability of developing **substance dependence**, which is characterized by a pattern of recurrent and often escalating use. - While occasional use can still lead to problems (substance abuse), it does not meet the established criteria for **dependence**, which require a persistent and problematic pattern. *No tolerance or withdrawal symptoms* - The presence of **tolerance** (requiring more of the substance to achieve the same effect) and **withdrawal symptoms** (unpleasant physical and psychological effects when the substance is stopped) are key diagnostic criteria for substance dependence in many diagnostic systems (e.g., DSM-5 Substance Use Disorders). - Their absence would argue against a diagnosis of dependence, although they are not universally required for all substances or individuals. *Absence of craving or strong desire to use* - **Craving** (a strong desire or urge to use the substance) is a central feature and a diagnostic criterion for substance dependence (and substance use disorder in DSM-5) because it reflects the powerful psychological drive to seek and use the substance. - The absence of craving would make a diagnosis of substance dependence much less likely, as it indicates a lower level of psychological dependence.

Q: A 28-year-old male with a history of heroin use presents with agitation, sweating, yawning, and diarrhea. What is the most appropriate treatment?

Buprenorphine. ***Buprenorphine*** - The patient's symptoms (agitation, sweating, yawning, diarrhea) are classic for **opioid withdrawal**. **Buprenorphine** is a partial opioid agonist that helps alleviate withdrawal symptoms and cravings without producing the same euphoric effects as full agonists. - It can be initiated when a patient is in **mild to moderate withdrawal** to prevent overdose and reduce the severity of symptoms, making it an appropriate choice in this scenario. *Naloxone* - **Naloxone** is an **opioid antagonist** used to **reverse opioid overdose** by rapidly displacing opioids from their receptors. - While it can precipitate acute withdrawal in opioid-dependent individuals, it is not used to treat withdrawal symptoms; rather, it is life-saving in overdose situations. *Clonidine* - **Clonidine** is an **alpha-2 adrenergic agonist** that can help reduce some **autonomic symptoms of opioid withdrawal**, such as sweating, tremors, and anxiety. - However, it does not address the opioid cravings or severe pain associated with withdrawal and is typically used as an adjunct rather than a primary treatment for full withdrawal. *Methadone* - **Methadone** is a **full opioid agonist** used for **opioid maintenance therapy** and severe withdrawal. It has a long half-life, allowing for once-daily dosing. - While effective, initiating methadone often requires specialized clinics and careful titration due to its potential for respiratory depression and overdose, making buprenorphine a more straightforward option for managing acute withdrawal in many settings.

Q: A 50-year-old male presents with tremors, confusion, and visual hallucinations after abruptly stopping alcohol consumption. What is the most likely diagnosis?

Alcohol withdrawal. ***Alcohol withdrawal*** - The combination of **tremors, confusion, and visual hallucinations** following abrupt cessation of alcohol consumption is highly characteristic of **delirium tremens**, a severe form of alcohol withdrawal. - Symptoms typically begin 48-96 hours after the last drink and can be life-threatening if untreated. *Opioid withdrawal* - Opioid withdrawal symptoms commonly include **flu-like symptoms** such as muscle aches, nausea, vomiting, and diarrhea. - **Hallucinations and severe confusion** are not typical features of opioid withdrawal. *Cannabis withdrawal* - Cannabis withdrawal symptoms are generally milder and include **irritability, anxiety, sleep disturbances, and cravings**. - **Tremors, confusion, and visual hallucinations** are not associated with cannabis withdrawal. *Cocaine withdrawal* - Cocaine withdrawal often presents with **dysphoria, fatigue, increased appetite, and psychomotor retardation or agitation**. - **Hallucinations** can occur in severe cases (cocaine-induced psychosis), but the pattern of **tremors and confusion** with recent cessation is not typical for primary cocaine withdrawal.

Question 1

Which is NOT a common symptom of opioid withdrawal?

Accepted Answer

Seizures

Answer

Yawning

Answer

Insomnia

Answer

Diarrhea

Question 2

Which of the following is NOT true about alcohol withdrawal?

Accepted Answer

Hallucinations occur on day 5

Answer

Tremors are an early symptom

Answer

Delirium tremens appears after 48 hours

Answer

Seizures occur within 24-48 hours

Question 3

Which of the following is not associated with Korsakoff psychosis?

Accepted Answer

Ophthalmoplegia

Answer

Amnesia

Answer

Confabulation

Answer

Polyneuropathy

Question 4

A 40-year-old man presents with a history of regular and heavy alcohol use for 10 years and morning drinking for one year. The last alcohol intake was three days ago. On examination, the patient exhibits coarse tremors, visual hallucinations, and disorientation to time. What is the best medication to prescribe?

Accepted Answer

Diazepam

Answer

Haloperidol

Answer

Imipramine

Answer

Naltrexone

Question 5

A 28-year-old male with a history of heroin use is started on methadone maintenance therapy. What is the primary goal of this treatment?

Accepted Answer

To prevent withdrawal symptoms and reduce cravings

Answer

To achieve complete abstinence from all opioids

Answer

To induce aversion to opioid use

Answer

To substitute heroin with a safer opioid

Question 6

A patient with a history of opioid addiction is given a drug for long-term relapse prevention in opioid use disorder. Which drug is most suitable for this purpose?

Accepted Answer

Naltrexone

Answer

Naloxone

Answer

Methadone

Answer

Buprenorphine

Question 7

A 45-year-old man with a long history of smoking presents with irritability, anxiety, and cravings for cigarettes after attempting to quit. What is the most appropriate treatment?

Accepted Answer

Bupropion

Answer

Amitriptyline

Answer

Haloperidol

Answer

Alprazolam

Question 8

In the context of substance use disorders, which of the following is a key criterion for diagnosing substance dependence?

Accepted Answer

Continued use despite harmful consequences

Answer

Infrequent use of the substance

Answer

No tolerance or withdrawal symptoms

Answer

Absence of craving or strong desire to use

Question 9

A 28-year-old male with a history of heroin use presents with agitation, sweating, yawning, and diarrhea. What is the most appropriate treatment?

Accepted Answer

Buprenorphine

Answer

Naloxone

Answer

Clonidine

Answer

Methadone

Question 10

A 50-year-old male presents with tremors, confusion, and visual hallucinations after abruptly stopping alcohol consumption. What is the most likely diagnosis?

Accepted Answer

Alcohol withdrawal

Answer

Opioid withdrawal

Answer

Cannabis withdrawal

Answer

Cocaine withdrawal

Substance Use Disorders — MCQs

Substance Use Disorders — MCQs

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