Behavioral Addictions — MCQs
Which personality disorder is characterized by unstable interpersonal relationships and impulsive behavior?
What is considered the most effective treatment for Borderline Personality Disorder?
A young person presents with self-mutilating behaviour and impulsivity. What are they most likely suffering from?
F00 in ICD denotes
Headache, behavioral changes, schizophrenia-like psychosis, visual hallucinations, and paranoid symptoms are seen in intoxication or abuse of?
The Confusion Assessment Method (CAM) is used for which of the following?
What are nitrergic neurons?
Punctate yellow exudates in the colon, found on endoscopic examination, are indicative of which of the following?
A person has a history of steatorrhea of long duration. D-xylose testing was performed. A 5-hour urine sample showed <4.5 g excretion after a 25g D-xylose load. What is/are the probable diagnosis?
A moderate increase in serum aminotransferases with AST/ALT > 3 is suggestive of which of the following?
Behavioral Addictions Indian Medical PG Practice Questions and MCQs
Question 1: Which personality disorder is characterized by unstable interpersonal relationships and impulsive behavior?
- A. Obsessive-compulsive
- B. Borderline (Correct Answer)
- C. Histrionic
- D. Schizoid
Explanation: **Borderline** - **Borderline personality disorder** is defined by a pervasive pattern of **instability in interpersonal relationships, self-image, and affects**, along with marked impulsivity. - Patients often experience intense, short-lived emotional episodes and may engage in **self-harm** or suicidal behaviors. *Obsessive-compulsive* - This disorder is characterized by a preoccupation with **orderliness, perfectionism**, and mental and interpersonal control, often at the expense of flexibility and efficiency. - Individuals tend to be meticulous, rigid, and resistant to delegating tasks, but generally do not exhibit unstable relationships or impulsivity. *Histrionic* - This personality disorder involves excessive **emotionality and attention-seeking behavior**, often dramatic and theatrical. - While they seek attention in relationships, their relationships are not necessarily unstable in the impulsive and intense way seen in borderline personality disorder; rather, they are often superficial. *Schizoid* - Individuals with **schizoid personality disorder** exhibit a pervasive pattern of detachment from social relationships and a restricted range of expression of emotions in interpersonal settings. - They tend to be loners and indifferent to praise or criticism, which is contrary to the intense and unstable relationships seen in borderline personality disorder.
Question 2: What is considered the most effective treatment for Borderline Personality Disorder?
- A. Combination of DBT and pharmacotherapy
- B. Cognitive Behavioural Therapy (CBT)
- C. Pharmacotherapy alone
- D. Dialectical Behaviour Therapy (DBT) (Correct Answer)
Explanation: ***Dialectical Behaviour Therapy (DBT)*** - **DBT** is the **gold standard** and most evidence-based psychotherapy specifically developed for Borderline Personality Disorder - Developed by **Marsha Linehan** specifically to target the core symptoms of BPD including emotional dysregulation, impulsivity, and interpersonal difficulties - Combines **cognitive-behavioral techniques** with mindfulness, distress tolerance, emotion regulation, and interpersonal effectiveness skills - Has the **strongest research evidence** for reducing suicidal behavior, self-harm, and improving overall functioning in BPD patients - Multiple RCTs demonstrate DBT's superiority in treating BPD compared to standard care *Cognitive Behavioural Therapy (CBT)* - While **CBT** is effective for many mental health conditions and can help with certain BPD symptoms, it was not specifically designed for BPD - DBT is actually a specialized adaptation of CBT tailored for BPD, making it more targeted and effective for this specific condition - Generic CBT may help with co-occurring conditions like depression or anxiety but lacks the comprehensive approach needed for core BPD features *Combination of DBT and pharmacotherapy* - This combination is clinically useful, especially when treating **co-morbid conditions** like depression, anxiety, or severe mood instability - However, psychotherapy (particularly DBT) remains the **cornerstone** of BPD treatment, with medications serving an adjunctive role - The question asks for the single most effective treatment, which is DBT alone *Pharmacotherapy alone* - **No medication** is FDA-approved specifically for BPD - Pharmacotherapy may help manage specific symptoms (mood swings, impulsivity, brief psychotic episodes) but does not address the core **personality pathology** - Generally not recommended as monotherapy for BPD; should always be combined with psychotherapy
Question 3: A young person presents with self-mutilating behaviour and impulsivity. What are they most likely suffering from?
- A. Dependent personality disorder
- B. Adjustment disorder
- C. Borderline personality disorder (Correct Answer)
- D. Paranoid personality disorder
Explanation: ***Borderline personality disorder*** - **Self-mutilating behavior** (e.g., cutting) and **impulsivity** are hallmark features of borderline personality disorder. - Individuals with BPD often experience intense emotional dysregulation, unstable relationships, and a fear of abandonment, leading to these behaviors. *Dependent personality disorder* - Characterized by an excessive need to be cared for, leading to submissive and clinging behavior, and fears of separation. - While it can involve unstable relationships due to dependency, it typically does not manifest with recurrent **self-mutilating behaviors** or significant **impulsivity** as core features. *Adjustment disorder* - This disorder is a short-term, stress-related condition that occurs in response to a specific **identifiable stressor**. - While individuals might exhibit behavioral symptoms, it is by definition time-limited and reactive to an external event, and **self-mutilating behavior** and chronic **impulsivity** are not primary diagnostic criteria. *Paranoid personality disorder* - Defined by a pervasive distrust and suspicion of others, interpreting their motives as malevolent. - This disorder is primarily characterized by paranoid ideation and guardedness, rather than the intrinsic **impulsivity** and **self-harm** seen in borderline personality disorder.
Question 4: F00 in ICD denotes
- A. mood disorders
- B. organic disorders (Correct Answer)
- C. substance use
- D. psychosis
Explanation: ***Organic disorders - CORRECT*** - **F00-F09** in the **International Classification of Diseases (ICD-10)** Chapter V (Mental and behavioural disorders) specifically denotes **organic, including symptomatic, mental disorders** - These disorders are characterized by brain disease, brain injury, or other insult leading to **cerebral dysfunction** - **F00** specifically refers to **Dementia in Alzheimer's disease** *Mood disorders - Incorrect* - Mood disorders are classified under codes **F30-F39** in ICD-10 - This category includes conditions like bipolar affective disorder, depressive episodes, and recurrent depressive disorders *Substance use - Incorrect* - Mental and behavioral disorders due to psychoactive substance use are classified under codes **F10-F19** in ICD-10 - This section covers disorders resulting from the use of alcohol, opioids, cannabis, sedatives, hypnotics, and other substances *Psychosis - Incorrect* - Specific psychotic disorders like schizophrenia are classified under codes **F20-F29** in ICD-10 - Psychosis can be a symptom of various mental disorders, including some organic conditions
Question 5: Headache, behavioral changes, schizophrenia-like psychosis, visual hallucinations, and paranoid symptoms are seen in intoxication or abuse of?
- A. Amphetamines (Correct Answer)
- B. Heroin
- C. Cocaine
- D. Cannabis
Explanation: ***Amphetamines*** - **Amphetamine intoxication** can cause a range of neuropsychiatric symptoms, including **headache**, **behavioral changes**, **paranoia**, and **schizophrenia-like psychosis** due to excessive dopamine release. - **Visual hallucinations** are also a common feature, reflecting severe neurochemical imbalance in the brain. *Cocaine* - While cocaine intoxication can cause **paranoia** and **psychosis**, **headache** and severe **schizophrenia-like psychosis** with prominent visual hallucinations are more characteristic of chronic amphetamine abuse. - Cocaine's effects are typically shorter-acting and often involve increased heart rate and blood pressure, with CNS effects that may not be as prolonged or severe as amphetamines in terms of psychosis. *Heroin* - Heroin is an **opioid** that primarily causes central nervous system **depression**, leading to sedation, constricted pupils, and respiratory depression. - It is **not associated with headache, behavioral changes, or schizophrenia-like psychosis with hallucinations** as described in the question. - Opioid intoxication presents with the classic triad of CNS depression, miosis (pinpoint pupils), and respiratory depression. *Cannabis* - **Cannabis** can induce **psychotic symptoms** and paranoia in some individuals, especially with high doses or in predisposed individuals, but a full-blown **schizophrenia-like psychosis** with severe behavioral changes and visual hallucinations as described is not its typical presentation, and headache is not a defining feature of cannabis intoxication. - Its effects are more commonly associated with altered perception, euphoria, and impaired coordination.
Question 6: The Confusion Assessment Method (CAM) is used for which of the following?
- A. Schizophrenia
- B. Delirium (Correct Answer)
- C. Dementia
- D. Depression
Explanation: ***Delirium*** - The Confusion Assessment Method (CAM) is a widely used and highly sensitive and specific tool for the rapid identification of **delirium**. - It assesses for acute onset and fluctuating course, inattention, disorganized thinking, and altered level of consciousness. *Schizophrenia* - Schizophrenia is a chronic mental health disorder primarily characterized by **psychosis**, including hallucinations, delusions, and disorganized thought. - While patients with schizophrenia can experience cognitive difficulties, specialized scales like the Positive and Negative Syndrome Scale (PANSS) are used, not the CAM. *Dementia* - Dementia is a gradual and progressive decline in cognitive function, including memory, thinking, and reasoning, severe enough to interfere with daily life. - Tools like the mini-mental state examination (MMSE) or Montreal Cognitive Assessment (MoCA) are used for screening and assessing dementia, not the CAM. *Depression* - Depression is a mood disorder characterized by persistent sadness, loss of interest, and other emotional and physical symptoms. - Assessment tools like the Hamilton Depression Rating Scale (HDRS) or Patient Health Questionnaire-9 (PHQ-9) are used for depression.
Question 7: What are nitrergic neurons?
- A. Postganglionic neurons releasing nitric oxide.
- B. First-order neurons releasing nitric oxide. (Correct Answer)
- C. Postganglionic neurons releasing substance P.
- D. First-order neurons releasing calcitonin gene-related peptide.
Explanation: **Nitrergic neurons** are a specific class of neurons that utilize **Nitric Oxide (NO)** as their primary neurotransmitter. Unlike classical neurotransmitters stored in vesicles, NO is a gaseous molecule synthesized on demand by the enzyme **Neuronal Nitric Oxide Synthase (nNOS)** [1]. **Why Option B is Correct:** In the context of the autonomic and enteric nervous systems, nitrergic neurons are typically **first-order neurons** (primary neurons) that release NO to mediate physiological functions. In the gastrointestinal tract, they are the principal inhibitory neurons of the myenteric plexus, responsible for the relaxation of smooth muscles (e.g., the Lower Esophageal Sphincter and the Sphincter of Oddi) [2]. **Analysis of Incorrect Options:** * **Option A:** While some postganglionic parasympathetic fibers (like those in the corpora cavernosa) release NO, the term "nitrergic neuron" fundamentally refers to the primary/first-order signaling unit in the inhibitory pathways of the enteric nervous system. * **Option C & D:** Substance P and Calcitonin Gene-Related Peptide (CGRP) are neuropeptides associated with **peptidergic neurons**, primarily involved in pain transmission (nociception) and vasodilation, not nitrergic signaling [2]. **High-Yield Clinical Pearls for NEET-PG:** * **Achalasia Cardia:** This condition results from the selective **loss of nitrergic neurons** in the myenteric (Auerbach's) plexus, leading to the failure of the Lower Esophageal Sphincter (LES) to relax. * **Erectile Dysfunction:** NO released from nitrergic nerves in the penis activates guanylyl cyclase, increasing cGMP and causing vasodilation [1]. Sildenafil works by preventing the breakdown of this cGMP. * **Infantile Hypertrophic Pyloric Stenosis:** Also associated with a deficiency of nNOS and nitrergic innervation at the pylorus.
Question 8: Punctate yellow exudates in the colon, found on endoscopic examination, are indicative of which of the following?
- A. Balantidium coli
- B. Ulcerative colitis
- C. Antibiotic-associated colitis (Correct Answer)
- D. Gluten-induced enteropathy
Explanation: ### **Explanation** The correct answer is **Antibiotic-associated colitis (Pseudomembranous colitis)**. **1. Why the Correct Answer is Right:** Antibiotic-associated colitis, most commonly caused by **_Clostridioides difficile_ (C. diff)** toxins, is characterized by the formation of **pseudomembranes**. On endoscopic examination (sigmoidoscopy or colonoscopy), these appear as classic **punctate yellow-white exudates** or plaques scattered over the colonic mucosa [1]. These plaques are composed of fibrin, inflammatory cells (neutrophils), and necrotic debris. As the disease progresses, these small punctate spots can coalesce to form larger membranes. **2. Why the Incorrect Options are Wrong:** * **Balantidium coli:** This parasitic infection typically causes **flask-shaped ulcers** (similar to Amoebiasis) rather than yellow exudative plaques. * **Ulcerative colitis:** Endoscopy typically reveals continuous mucosal inflammation starting from the rectum, characterized by **loss of vascular markings, friability, and "lead-pipe" appearance** in chronic cases [1]. It does not present with punctate yellow exudates. * **Gluten-induced enteropathy (Celiac Disease):** This primarily affects the **small intestine** (duodenum/jejunum). Endoscopic findings include scalloping of folds, fissuring, and a mosaic pattern, not colonic exudates. **3. High-Yield Clinical Pearls for NEET-PG:** * **Risk Factor:** Most common after the use of **Clindamycin**, Fluoroquinolones, or 3rd generation Cephalosporins [1]. * **Diagnosis:** The gold standard for diagnosis is the detection of **C. diff toxin A and B** in the stool via PCR or EIA [1]. * **Histology:** Look for the characteristic **"Volcano lesion"** (an eruption of fibrin and PMNs from an ulcerated crypt). * **Treatment:** First-line treatment is oral **Vancomycin** or **Fidaxomicin**. Metronidazole is now reserved for non-severe cases where other options are unavailable.
Question 9: A person has a history of steatorrhea of long duration. D-xylose testing was performed. A 5-hour urine sample showed <4.5 g excretion after a 25g D-xylose load. What is/are the probable diagnosis?
- A. Celiac disease (Correct Answer)
- B. Pancreatitis
- C. Blind loop syndrome
- D. Heal disease
Explanation: The **D-xylose absorption test** is a classic diagnostic tool used to differentiate between **malabsorption** (mucosal disease) and **maldigestion** (pancreatic insufficiency). D-xylose is a monosaccharide that is absorbed in the proximal small intestine by passive diffusion and does not require pancreatic enzymes for digestion [1]. 1. **Why Celiac Disease is Correct:** In Celiac disease, there is diffuse mucosal damage and blunting of the villi in the small intestine. This leads to impaired absorption of D-xylose [1]. A 5-hour urinary excretion of **<4.5 g** (after a 25g oral load) indicates intestinal mucosal dysfunction, confirming malabsorption. 2. **Why Pancreatitis is Incorrect:** In chronic pancreatitis, steatorrhea occurs due to a lack of lipase (maldigestion) [1]. However, the intestinal mucosa remains intact. Therefore, D-xylose is absorbed normally, and urinary excretion will be **>4.5 g** (Normal). 3. **Why Blind Loop Syndrome is Incorrect:** While Small Intestinal Bacterial Overgrowth (SIBO) can sometimes cause a false positive D-xylose test (as bacteria may metabolize the sugar), it is not the primary diagnosis associated with classic mucosal malabsorption in standard NEET-PG scenarios. 4. **Why Ileal Disease is Incorrect:** D-xylose is primarily absorbed in the **duodenum and jejunum**. Disease localized strictly to the terminal ileum (like Crohn’s) typically results in a normal D-xylose test but abnormal Vitamin B12 absorption (Schilling test). **High-Yield Clinical Pearls for NEET-PG:** * **Normal D-xylose test:** Points toward Pancreatic Insufficiency. * **Abnormal D-xylose test:** Points toward Mucosal Disease (Celiac, Tropical Sprue, Whipple’s) [1]. * **False Positives:** Can occur in patients with renal failure, ascites, or delayed gastric emptying. * **Gold Standard for Celiac:** Small bowel biopsy showing villous atrophy and crypt hyperplasia.
Question 10: A moderate increase in serum aminotransferases with AST/ALT > 3 is suggestive of which of the following?
- A. Acute viral hepatitis
- B. Prolonged hypotension
- C. Alcoholic liver disease (Correct Answer)
- D. Drug hepatotoxicity
Explanation: In alcoholic liver disease (ALD), the ratio of **AST to ALT is typically >2:1**, and a ratio **>3:1** is highly suggestive of the diagnosis. ### Why Alcoholic Liver Disease is Correct The biochemical basis for this ratio lies in two factors: 1. **Pyridoxal-5'-phosphate (Vitamin B6) Deficiency:** Chronic alcohol consumption leads to a deficiency of Vitamin B6, which is a required co-factor for ALT synthesis. Consequently, ALT levels remain relatively low even during liver injury. 2. **Mitochondrial Damage:** Alcohol is a mitochondrial toxin [1]. AST exists in both cytosolic and mitochondrial forms; alcohol-induced damage causes the preferential release of mitochondrial AST [1]. In ALD, the absolute values of transaminases are usually only **moderately elevated** (typically <300-500 IU/L). If AST exceeds 500 IU/L or ALT exceeds 300 IU/L, a co-existing cause (like acetaminophen toxicity) should be suspected [1]. ### Why Other Options are Incorrect * **Acute Viral Hepatitis:** Characterized by massive elevations in transaminases (often >1000 IU/L) with an **AST/ALT ratio <1** [2]. * **Prolonged Hypotension (Ischemic Hepatitis):** Causes "shock liver" with rapid, dramatic rises in transaminases (often >5000 IU/L) and LDH. * **Drug Hepatotoxicity:** Most drugs (except for specific toxins like acetaminophen in the late stage) typically present with an **AST/ALT ratio <1**. ### High-Yield Clinical Pearls for NEET-PG * **GGT (Gamma-Glutamyl Transferase):** The most sensitive marker for chronic alcohol ingestion, though less specific than the AST/ALT ratio [3]. * **Macrocytosis (High MCV):** Often seen in chronic alcoholics due to direct bone marrow toxicity or folate deficiency [3]. * **Rule of Thumb:** If AST/ALT >2, think Alcohol. If ALT > AST, think Viral or Fatty Liver (NAFLD).
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