Cannabis-Related Disorders Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Cannabis-Related Disorders. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Cannabis-Related Disorders Indian Medical PG Question 1: A 55-year-old drug addict from California presents with euphoria, altered time perception, and conjunctival injection, along with impairment of judgment. The most likely cause of this is addiction to which substance?
- A. Marijuana (Correct Answer)
- B. Cocaine
- C. Phencyclidine
- D. Benzodiazepine
Cannabis-Related Disorders Explanation: ***Marijuana***
- **Euphoria**, altered time perception, and **conjunctival injection** are classic symptoms associated with marijuana use.
- Impairment of judgment and coordination are also common effects of **cannabis intoxication**.
*Cocaine*
- Cocaine intoxication typically presents with **psychomotor agitation**, **tachycardia**, **hypertension**, and **dilated pupils**, not conjunctival injection.
- While it causes euphoria and altered perception, the specific combination of symptoms points away from cocaine.
*Phencyclidine*
- **Phencyclidine (PCP)** often causes **nystagmus**, violence, and **dissociative symptoms** like derealization and depersonalization, which are not described.
- It can also lead to severe agitation and unpredictable behavior, distinct from the patient's presentation.
*Benzodiazepine*
- Benzodiazepine intoxication or abuse typically leads to **sedation**, ataxia, and **respiratory depression**, rather than euphoria and conjunctival injection.
- The effects are more consistent with central nervous system depression.
Cannabis-Related Disorders Indian Medical PG Question 2: What is the role of Anandamide in the human body?
- A. Opioid
- B. D2 blocker
- C. Cannabinoid neurotransmitter (Correct Answer)
- D. CCK1 antagonist
Cannabis-Related Disorders Explanation: ***Cannabinoid neurotransmitter***
- **Anandamide** is an **endogenous cannabinoid neurotransmitter** that binds to **CB1** and **CB2 receptors**.
- It plays a role in **pain modulation**, **appetite stimulation**, and **memory regulation**.
*Opioid*
- **Opioids** bind to **opioid receptors** (mu, delta, kappa) and are known for their **analgesic** and **euphoric effects**.
- Examples include **morphine** and **endorphins**, which are chemically distinct from anandamide and have different receptor targets.
*CK 1 antagonist*
- This option refers to a **cholecystokinin 1 (CCK1) receptor antagonist**, which would block the effects of **CCK**.
- **CCK** is a hormone involved in **digestion** and **satiety**, and its role is unrelated to anandamide.
*D2 blocker*
- A **D2 blocker** is an agent that antagonizes the **dopamine D2 receptor**.
- These are typically **antipsychotic medications** that modulate **dopamine pathways** in the brain, unrelated to the function of anandamide.
Cannabis-Related Disorders Indian Medical PG Question 3: What is the primary role of marijuana in the management of AIDS-related cachexia?
- A. Produces euphoric effects
- B. Acts as a psycho-stimulant
- C. Stimulates appetite (Correct Answer)
- D. Reduces nausea
Cannabis-Related Disorders Explanation: ***Stimulates appetite***
- Marijuana, particularly through its cannabinoid components like THC, is well-known for its **appetite-stimulating effects**, often referred to as "the munchies."
- For patients with AIDS-related cachexia (wasting syndrome), increasing appetite can help in **gaining weight** and improving nutritional status, which is crucial for overall health.
*Produces euphoric effects*
- While marijuana can produce euphoric effects, this is a **side effect** and not the primary therapeutic role sought for managing **cachexia**.
- The euphoria might temporarily improve mood but does not directly address the physiological wasting.
*Acts as a psycho-stimulant*
- Marijuana is generally considered a **depressant** or **hallucinogen**, not a psycho-stimulant.
- Psycho-stimulants increase alertness and focus, which is not the desired action for treating AIDS-related cachexia.
*Reduces nausea*
- While marijuana can effectively **reduce nausea** and vomiting, particularly in chemotherapy patients, this is a secondary benefit in the context of cachexia.
- The primary goal in cachexia is to increase food intake and weight, which the appetite stimulation directly addresses.
Cannabis-Related Disorders Indian Medical PG Question 4: Management of a violent patient in psychiatry includes all except:
- A. CBT (Correct Answer)
- B. Haloperidol
- C. ECT
- D. BZD
Cannabis-Related Disorders Explanation: ***CBT***
- **Cognitive Behavioral Therapy (CBT)** is a long-term psychological intervention aimed at changing maladaptive thought patterns and behaviors. It is **not suitable for immediate management** of an acutely violent patient.
- While CBT can be beneficial for aggression management in a stable patient, it requires patient cooperation, cognitive engagement, and time, which are not available during a **violent psychiatric emergency**.
*Haloperidol*
- **Haloperidol** is a potent typical antipsychotic frequently used in acute settings for rapid tranquilization of violent or severely agitated patients.
- It is effective in reducing **psychosis-related agitation** and can be administered **intramuscularly** for quick onset of action.
- Often used in combination with benzodiazepines for optimal control of acute violence.
*ECT*
- **Electroconvulsive Therapy (ECT)** may be considered in **severe, treatment-resistant cases** of violence associated with conditions like uncontrolled mania, catatonic excitement, or psychotic depression when pharmacological interventions have failed.
- While not used for immediate acute management due to logistical requirements (consent, anesthesia, specialized setup), it can be an effective option for severe psychiatric conditions with persistent violence.
- It works by inducing a brief controlled seizure, which can rapidly alleviate severe symptoms.
*BZD*
- **Benzodiazepines (BZDs)** like lorazepam or diazepam are **first-line agents** in the acute management of violent or agitated patients due to their rapid anxiolytic, sedative, and muscle relaxant properties.
- They are particularly useful for **calming acute agitation** and are often combined with antipsychotics for rapid tranquilization.
- Can be administered intramuscularly or intravenously for quick action in psychiatric emergencies.
Cannabis-Related Disorders Indian Medical PG Question 5: Symptomatic treatment is only required in withdrawal syndrome caused by:
- A. Alcohol
- B. Cocaine
- C. Morphine
- D. Cannabis (Correct Answer)
Cannabis-Related Disorders Explanation: ***Cannabis***
- **Cannabis withdrawal syndrome** is generally mild and non-life-threatening, **requiring only symptomatic management** for symptoms such as irritability, anxiety, sleep disturbances, and cravings.
- Unlike withdrawal from opioids or alcohol, cannabis withdrawal does not present with severe physiological complications, seizures, or significant psychological distress requiring pharmacotherapy.
- **Supportive care alone is sufficient** with reassurance, hydration, and rest.
*Morphine*
- **Opioid withdrawal** (e.g., from morphine) can be very distressing and painful, involving severe gastrointestinal symptoms, myalgia, and intense cravings.
- **Requires pharmacological intervention** with medications like **methadone**, **buprenorphine**, or **clonidine** for symptom control and to prevent relapse.
- Not merely symptomatic treatment.
*Alcohol*
- **Alcohol withdrawal syndrome** can be severe and life-threatening, potentially progressing to **delirium tremens** and seizures.
- **Necessitates pharmacological treatment** with **benzodiazepines** (e.g., lorazepam, diazepam) to prevent serious complications.
- Symptomatic treatment alone is inadequate and dangerous.
*Cocaine*
- **Cocaine withdrawal** is characterized by **dysphoria**, fatigue, hypersomnia, and intense cravings with high relapse risk.
- While primarily managed with supportive care, **severe cases often require pharmacological intervention** for depression (antidepressants) and intense cravings.
- Unlike cannabis, the psychological severity often necessitates more than just symptomatic management.
Cannabis-Related Disorders Indian Medical PG Question 6: What is the classification of intelligence corresponding to an IQ score of 90-109?
- A. Below average
- B. Average (Correct Answer)
- C. Slightly below average
- D. Above average
Cannabis-Related Disorders Explanation: ***Average***
- An **IQ score** range of **90-109** is traditionally classified as **Average** intelligence.
- This range represents the **mean** and surrounding **standard deviation** of IQ scores in the general population.
*Below average*
- This classification usually corresponds to IQ scores in the range of **70-79** or **80-89**, depending on the specific scale.
- It does not represent the central tendency of the population's intelligence.
*Slightly below average*
- This category typically corresponds to IQ scores in the range of **80-89**.
- It falls just below the average range but is not as low as the "below average" classification.
*Above average*
- This classification is typically assigned to IQ scores that are in the range of **110-119** or higher.
- It signifies cognitive abilities that are greater than the majority of the population.
Cannabis-Related Disorders Indian Medical PG Question 7: A mother reports that her daughter ingested a substance in an unknown dose. The girl presents with hypertension, tachycardia, mydriasis, and hyperthermia. What is the most likely substance?
- A. Heroin
- B. Morphine
- C. Cocaine (Correct Answer)
- D. Chlorpheniramine
- E. Organophosphate
Cannabis-Related Disorders Explanation: ***Cocaine***
- The presented symptoms of **hypertension, tachycardia, mydriasis, and hyperthermia** are characteristic of a **sympathomimetic toxidrome**, frequently caused by cocaine overdose.
- Cocaine acts as a **norepinephrine-dopamine-serotonin reuptake inhibitor**, leading to excessive stimulation of the central and peripheral nervous systems.
*Heroin*
- Heroin is an **opioid**, and overdose generally presents with **respiratory depression, bradycardia, miosis (pinpoint pupils)**, and hypotension, which are contrary to the patient's symptoms.
- Patients typically exhibit central nervous system **depression**, rather than the hyperactive state seen here.
*Morphine*
- Similar to heroin, morphine is an **opioid** and causes symptoms like **respiratory depression, bradycardia, miosis**, and hypotension.
- These effects are the opposite of the **sympathomimetic** signs observed in the patient.
*Chlorpheniramine*
- Chlorpheniramine is an **antihistamine** with significant **anticholinergic effects**. An overdose might cause **mydriasis and tachycardia**, but not typically severe hypertension or hyperthermia as the primary features.
- Other anticholinergic signs such as **dry mucous membranes, urinary retention, and altered mental status (delirium)** would also be expected.
*Organophosphate*
- Organophosphate poisoning causes a **cholinergic toxidrome** due to **acetylcholinesterase inhibition**, resulting in excessive cholinergic stimulation.
- Classic presentation includes **SLUDGE syndrome** (Salivation, Lacrimation, Urination, Defecation, GI upset, Emesis) along with **miosis (pinpoint pupils), bradycardia, bronchospasm**, and muscle fasciculations.
- These findings are the **opposite** of the sympathomimetic signs seen in this patient.
Cannabis-Related Disorders Indian Medical PG Question 8: Match the following: A) Caplan syndrome- 1) Found first in coal worker B) Asbestosis- 2) Upper lobe predominance C) Mesothelioma- 3) Involves lower lobe D) Sarcoidosis- 4) Pleural effusion is seen
- A. A-3, B-4, C-2, D-1
- B. A-1, B-4, C-3, D-2 (Correct Answer)
- C. A-4, B-2, C-3, D-1
- D. A-2, B-4, C-3, D-1
Cannabis-Related Disorders Explanation: **A-1, B-4, C-3, D-2**
- **Caplan syndrome** was first described in **coal workers** with **rheumatoid arthritis** and progressive massive fibrosis.
- **Asbestosis** is often associated with **pleural effusion**, which can be benign or malignant.
- **Mesothelioma** typically involves the **lower lobes** of the lungs, specifically the pleura, and is strongly linked to asbestos exposure.
- **Sarcoidosis** is characterized by **non-caseating granulomas**, which have a predilection for the **upper lobes** of the lungs.
*A-3, B-4, C-2, D-1*
- This option incorrectly states that Caplan syndrome involves the lower lobe; **Caplan syndrome** is defined by the presence of large nodules in the lungs of coal workers with rheumatoid arthritis, and their specific lobar distribution is not a defining characteristic.
- This option incorrectly states that Mesothelioma has an upper lobe predominance; **Mesothelioma** is a pleural malignancy and typically involves the **lower lobes**, extending along the pleura.
*A-4, B-2, C-3, D-1*
- This option incorrectly associates Caplan syndrome with pleural effusion; **Caplan syndrome** manifests as rheumatoid nodules in the lungs, not primarily pleural effusion.
- This option incorrectly states that Asbestosis has an upper lobe predominance; **Asbestosis** predominantly affects the **lower lobes** of the lungs, causing interstitial fibrosis.
*A-2, B-4, C-3, D-1*
- This option incorrectly states that Caplan syndrome has an upper lobe predominance; the defining feature of **Caplan syndrome** is the combination of rheumatoid arthritis and pneumoconiosis, not specific lobar involvement.
- This option correctly identifies pleural effusion with asbestosis and lower lobe involvement with mesothelioma, but **Caplan syndrome** is not characterized by upper lobe predominance.
Cannabis-Related Disorders Indian Medical PG Question 9: Following pathogenetic mechanisms operate in septic shock except -
- A. Direct toxic endothelial injury
- B. Veno constriction
- C. Increased peripheral vascular resistance (Correct Answer)
- D. Activation of complement
Cannabis-Related Disorders Explanation: Following pathogenetic mechanisms operate in septic shock except -
***Increased peripheral vascular resistance***
- Septic shock is characterized by profound **vasodilation** and a subsequent **decrease in systemic vascular resistance (SVR)**, leading to hypoperfusion.
- The body's compensatory mechanisms attempt to increase cardiac output rather than constrict peripheral vessels, making increased PVR an unlikely finding in established septic shock. [1]
*Direct toxic endothelial injury*
- **Bacterial products** (e.g., endotoxins from Gram-negative bacteria) and inflammatory mediators directly damage the **endothelium**, leading to capillary leak and microvascular dysfunction.
- This endothelial damage contributes significantly to the widespread organ damage seen in sepsis.
*Veno constriction*
- While initial compensatory mechanisms might involve elements of vasoconstriction to maintain blood pressure, the hallmark of septic shock is widespread **vasodilation**, which includes both arterial and venous beds.
- Early, fleeting venoconstriction is overshadowed by the profound venodilation and loss of venous tone that ultimately contributes to reduced preload and distributive shock.
*Activation of complement*
- The innate immune response in sepsis triggers the **complement cascade**, leading to the generation of potent inflammatory mediators.
- Complement activation contributes to endothelial damage, leukocyte recruitment, and further amplification of the systemic inflammatory response.
Cannabis-Related Disorders Indian Medical PG Question 10: Warm periphery is noticed in which type of shock:
- A. Traumatic shock
- B. Cardiogenic shock
- C. Septic shock (Correct Answer)
- D. Hemorrhagic shock
Cannabis-Related Disorders Explanation: Septic shock
- In septic shock, the severe systemic inflammation and widespread **vasodilation** lead to an initial phase of warm, flushed extremities, known as **warm shock**.
- This is due to the body's inability to adequately vasoconstrict peripheral vessels despite hypotension.
*Traumatic shock*
- Traumatic shock often involves **hemorrhage** and systemic inflammatory responses, typically presenting with **cool, clammy skin** due to vasoconstriction.
- The body attempts to centralize blood flow to vital organs, reducing perfusion to the periphery.
*Cardiogenic shock*
- Characterized by severe **pump failure** of the heart, leading to reduced cardiac output and poor peripheral perfusion [1].
- Patients typically present with **cool, clammy extremities** as the body tries to compensate by vasoconstriction.
*Hemorrhagic shock*
- Caused by significant **blood loss**, which triggers a compensatory response of **vasoconstriction** in the periphery to maintain central blood pressure.
- This results in **cool, pale, and clammy skin** as blood is shunted away from non-essential areas.
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