Psychiatric Assessment and Diagnosis — MCQs

Psychiatric Assessment and Diagnosis Indian Medical PG Practice Questions and MCQs

Question 361: Which of the following is not classified as a somatoform disorder?

A. Body dysmorphic disorder
B. Obsessive compulsive disorder (Correct Answer)
C. Somatoform pain disorder
D. Hypochondriasis

Explanation: **Explanation:** The core concept of **Somatoform Disorders** (now largely categorized under Somatic Symptom and Related Disorders in DSM-5) is the presence of physical symptoms that suggest a general medical condition but are not fully explained by a physiological cause, substance use, or another mental disorder. **Why Obsessive-Compulsive Disorder (OCD) is the correct answer:** OCD is classified under **Anxiety Disorders** (ICD-10) or **Obsessive-Compulsive and Related Disorders** (DSM-5). It is characterized by intrusive, distressing thoughts (obsessions) and repetitive mental or physical acts (compulsions). While OCD can involve somatic obsessions (e.g., fear of germs), it lacks the primary presentation of unexplained physical pain or bodily dysfunction that defines somatoform disorders. **Analysis of Incorrect Options:** * **Body Dysmorphic Disorder (BDD):** In ICD-10, BDD is classified as a somatoform disorder. It involves a distressing preoccupation with an imagined or slight defect in physical appearance. * **Somatoform Pain Disorder:** This involves persistent, severe pain that cannot be explained by a physical process and is often associated with emotional conflict or psychosocial problems. * **Hypochondriasis:** Characterized by a persistent preoccupation with the fear of having a serious disease based on a misinterpretation of bodily symptoms, despite medical reassurance. **NEET-PG High-Yield Pearls:** * **ICD-10 vs. DSM-5:** Note that in DSM-5, Body Dysmorphic Disorder has been moved from Somatoform disorders to the "Obsessive-Compulsive and Related Disorders" category. However, for exams following ICD-10, it remains a somatoform disorder. * **Primary Gain:** The internal emotional relief provided by the symptom. * **Secondary Gain:** The external benefits (attention, avoiding work) derived from being "sick." * **La Belle Indifference:** Classically seen in **Conversion Disorder** (Dissociative Neurological Symptom Disorder), where the patient shows a surprising lack of concern regarding their severe physical disability.

Question 362: What is the term for an irresistible desire to buy something?

A. Mutilomania
B. Dipsomania
C. Oniomania (Correct Answer)
D. Trichotilomania

Explanation: **Explanation:** The correct answer is **Oniomania (Option C)**. **Oniomania** is the clinical term for compulsive buying disorder. It is characterized by an irresistible, uncontrollable urge to shop and spend, often resulting in significant financial, social, and psychological distress. In psychiatric classification, it is generally categorized under **Impulse Control Disorders (Not Otherwise Specified)**. The behavior is typically driven by an increasing sense of tension before the act and a temporary sense of relief or gratification immediately after, followed by guilt or remorse. **Analysis of Incorrect Options:** * **Mutilomania (Option A):** An obsolete or rare term referring to an abnormal impulse to self-mutilate or injure animals. * **Dipsomania (Option B):** An older term for an uncontrollable craving for alcohol, often occurring in periodic bouts (paroxysmal excessive drinking). * **Trichotillomania (Option D):** A well-known impulse control disorder characterized by the recurrent, compulsive pulling out of one's own hair, leading to noticeable hair loss. **High-Yield Clinical Pearls for NEET-PG:** * **Kleptomania:** The irresistible urge to steal items that are not needed for personal use or monetary value. * **Pyromania:** The deliberate and repetitive setting of fires for gratification or tension release. * **Treatment:** For Oniomania and other impulse control disorders, **Cognitive Behavioral Therapy (CBT)** is the mainstay of treatment, sometimes supplemented with **SSRIs** (like Fluoxetine) to manage underlying impulsivity or comorbid mood disorders.

Question 363: Displacement is a defense mechanism for which of the following conditions?

A. Phobia (Correct Answer)
B. Depression
C. Persecutory delusions
D. Delusions of grandiosity

Explanation: **Explanation:** The correct answer is **Phobia**. In psychodynamic theory, **displacement** is a defense mechanism where an individual redirects an emotional impulse (usually aggression or anxiety) from a threatening or unacceptable object to a safer, neutral substitute. 1. **Why Phobia is correct:** According to Freud’s analysis (notably the case of "Little Hans"), phobias are formed through displacement. An internal, unconscious conflict or anxiety is shifted onto an external object or situation (e.g., spiders, heights, or animals). By displacing the anxiety onto a specific external stimulus, the individual can "avoid" the anxiety by simply avoiding that object, rather than facing the deeper, internal conflict. 2. **Why other options are incorrect:** * **Depression:** The primary defense mechanism associated with depression is **Introjection** (turning anger inward against the self). * **Persecutory Delusions:** These are primarily driven by **Projection**, where the individual’s own unacceptable aggressive impulses are attributed to others ("I don't hate him; he hates me and is out to get me"). * **Delusions of Grandiosity:** These often involve **Reaction Formation** or **Denial** of underlying feelings of inferiority or inadequacy. **Clinical Pearls for NEET-PG:** * **Displacement vs. Projection:** In displacement, the *emotion* is shifted to a new object (e.g., yelling at your spouse because your boss yelled at you). In projection, the *impulse* is attributed to someone else. * **Phobia Triad:** The psychodynamic formation of a phobia involves three steps: **Displacement, Projection, and Avoidance.** * **High-Yield Association:** Always link **OCD** with Undoing, Isolation of Affect, and Reaction Formation; and **Paranoia** with Projection.

Question 364: Delirium and schizophrenia differ from each other by:

A. Change in mood
B. Clouding of consciousness (Correct Answer)
C. Tangential thinking
D. All of the above

Explanation: **Explanation:** The fundamental distinction between **Delirium** and **Schizophrenia** lies in the **sensorium and level of consciousness**. **1. Why "Clouding of Consciousness" is correct:** Delirium is an acute organic brain syndrome characterized by a **fluctuating level of consciousness** and impaired attention. "Clouding of consciousness" refers to the patient's inability to respond normally to environmental stimuli, often manifesting as disorientation to time, place, and person. In contrast, Schizophrenia is a functional psychotic disorder where the **sensorium remains clear**; patients are typically alert and oriented, even while experiencing active hallucinations or delusions. **2. Why other options are incorrect:** * **Change in mood:** Both conditions can present with mood disturbances. A patient with delirium may show irritability or fear, while a patient with schizophrenia may exhibit blunted affect, depression, or inappropriate emotional responses. Thus, this does not differentiate the two. * **Tangential thinking:** This is a formal thought disorder. While more characteristic of the disorganized thinking in Schizophrenia, it can also occur in Delirium due to the patient's inability to maintain a coherent stream of thought (disorganized speech). * **All of the above:** Since mood and thought disturbances overlap, only the state of consciousness serves as the pathognomonic differentiator. **High-Yield Clinical Pearls for NEET-PG:** * **Delirium:** Acute onset, fluctuating course, reversible, and usually due to an underlying medical condition (e.g., infections, metabolic imbalance). Visual hallucinations are more common. * **Schizophrenia:** Chronic course (>6 months), stable consciousness, and primarily auditory hallucinations. * **Memory Tip:** If the question mentions "disorientation" or "fluctuating attention," think **Delirium**. If the patient is "oriented but delusional," think **Schizophrenia**.

Question 365: Which statement is not true about hallucinations?

A. It is as vivid as a real perception
B. It occurs in inner subjective space (Correct Answer)
C. It is independent of the will of the observer
D. It occurs in the absence of any perceptual stimulus

Explanation: ### Explanation The core of this question lies in distinguishing between **Hallucinations** and **Pseudohallucinations** based on Jasper’s criteria for phenomenology. **Why Option B is the correct (False) statement:** Hallucinations are defined as perceptions that occur in the **outer objective space** (external space), just like real perceptions. If a perception occurs in the **inner subjective space** (e.g., "a voice inside my head"), it is classified as a **Pseudohallucination**. Therefore, statement B is incorrect regarding true hallucinations. **Analysis of Incorrect Options (True statements about Hallucinations):** * **Option A:** Hallucinations possess **full sensory vividness**. To the patient, the experience is as clear, detailed, and "real" as an actual sensory perception. * **Option C:** They are **involuntary** and independent of the observer's will. The patient cannot initiate or stop the hallucination at their own command. * **Option D:** By definition, a hallucination is a "perception without an external stimulus." This distinguishes it from an **Illusion**, which is a misinterpretation of an *existing* stimulus. --- ### High-Yield Clinical Pearls for NEET-PG: * **Hallucination vs. Illusion:** Hallucination = No stimulus; Illusion = Misinterpreted stimulus. * **Pseudohallucination:** Occurs in internal space; the patient often retains insight that the experience is not real. * **Most Common Hallucination in Schizophrenia:** Auditory (specifically third-person "running commentary"). * **Most Common Hallucination in Organic Brain Syndromes (Delirium/Epilepsy):** Visual. * **Hypnagogic vs. Hypnopompic:** Hypna**go**gic occurs while **go**ing to sleep; Hypnopompic occurs while waking up (common in Narcolepsy).

Question 366: A 20-year-old female presents with complaints of nausea, vomiting, dizziness, and pain in the legs. Her physical examination, laboratory investigations, and radiological investigations are all normal. What is the most probable diagnosis?

A. Generalized anxiety disorder
B. Conversion disorder
C. Somatoform pain disorder
D. Somatization disorder (Correct Answer)

Explanation: **Explanation:** The patient presents with multiple, recurrent physical symptoms involving different organ systems (gastrointestinal: nausea/vomiting; neurological: dizziness; musculoskeletal: leg pain) that cannot be explained by any organic medical condition. **1. Why Somatization Disorder is correct:** According to ICD-10/DSM-IV criteria, **Somatization Disorder** is characterized by multiple, clinically significant physical symptoms (typically involving gastrointestinal, sexual, neurological, and pain symptoms) starting before age 30, persisting for several years, and resulting in significant impairment. The hallmark is the presence of **multi-system involvement** with normal investigations, as seen in this 20-year-old female. **2. Why other options are incorrect:** * **Generalized Anxiety Disorder (GAD):** While GAD can have physical symptoms (tachycardia, sweating), the core feature is excessive, uncontrollable worry about various events for at least 6 months. * **Conversion Disorder (Functional Neurological Symptom Disorder):** This involves a loss or change in **voluntary motor or sensory function** (e.g., paralysis, blindness, seizures) often triggered by psychological stress. It does not typically present with multi-system complaints like nausea or vomiting. * **Somatoform Pain Disorder:** The primary and predominant complaint is persistent, severe pain that cannot be fully explained by a physiological process. This patient has multiple non-pain symptoms (nausea, dizziness), making Somatization a better fit. **High-Yield Clinical Pearls for NEET-PG:** * **Demographics:** Most common in young females (F:M ratio up to 10:1) with low socioeconomic status. * **DSM-5 Update:** In DSM-5, Somatization disorder, Hypochondriasis, and Pain disorder have been merged into **Somatic Symptom Disorder (SSD)**. * **Management:** The goal is "care, not cure." Schedule regular brief visits with a single primary physician to avoid unnecessary investigations and "doctor shopping." * **Key Differentiator:** Unlike Malingering or Factitious disorder, the symptoms in Somatoform disorders are **not** under voluntary control; the patient truly experiences the distress.

Question 367: All of the following are features of somatization disorder except?

A. Frequently changing pain sites
B. Sexual symptoms
C. Paresthesia
D. Professional patients (Correct Answer)

Explanation: **Explanation:** **Somatization Disorder** (now categorized under Somatic Symptom Disorder in DSM-5) is characterized by multiple, recurring, and clinically significant physical complaints that cannot be fully explained by a general medical condition. **Why "Professional Patients" is the correct answer:** The term **"Professional Patients"** is classically associated with **Factitious Disorder (Munchausen Syndrome)**, not somatization. In Factitious Disorder, patients intentionally produce or feign symptoms to assume the "sick role" for primary psychic gain. In contrast, patients with somatization disorder **do not** consciously produce their symptoms; their distress is real and involuntary. **Analysis of Incorrect Options:** * **Frequently changing pain sites:** This is a hallmark of somatization. Patients typically present with a long, complicated medical history involving pain in various locations (head, abdomen, back, joints). * **Sexual symptoms:** According to the classic **Briquet’s Syndrome** criteria (included in ICD-10/DSM-IV), a diagnosis required symptoms from different categories, including at least one sexual or reproductive symptom (e.g., erectile dysfunction, menstrual irregularity). * **Paresthesia:** Neurological symptoms (pseudoneurological) such as numbness, paresthesia, or localized weakness are common features of the multisystem involvement seen in these patients. **Clinical Pearls for NEET-PG:** * **Gender Ratio:** Significantly more common in females (approx. 10:1). * **DSM-IV Criteria (Rule of 4-2-2-1):** To diagnose Somatization Disorder, a patient needed 4 pain symptoms, 2 GI symptoms, 1 sexual symptom, and 1 pseudoneurological symptom. * **Doctor Shopping:** Unlike "professional patients" who seek the role, somatization patients engage in "doctor shopping" because they are genuinely frustrated by the lack of a medical explanation for their suffering. * **Management:** The primary goal is to schedule regular, brief follow-ups to prevent "doctor shopping" and avoid unnecessary invasive investigations.

Question 368: Biological amnesia is defined as:

A. Lack of interest
B. Presenile dementia (Correct Answer)
C. Opioid addiction
D. Hypothyroidism

Explanation: **Explanation:** **Biological Amnesia** is a clinical term historically used to describe cognitive decline and memory loss resulting from organic, structural, or degenerative changes in the brain. In the context of this question, it refers to **Presenile Dementia** (Option B). 1. **Why Option B is Correct:** Presenile dementia (typically occurring before age 65, such as early-onset Alzheimer’s or Pick’s disease) involves the progressive biological degeneration of neurons. Unlike "psychogenic amnesia" (caused by trauma or stress), biological amnesia is rooted in identifiable pathophysiology—atrophy, amyloid plaques, or neurofibrillary tangles—leading to irreversible memory deficits. 2. **Why Other Options are Incorrect:** * **Option A (Lack of interest):** This describes *apathy*, often seen in depression or frontal lobe syndromes, but it is a motivational deficit, not a primary amnestic disorder. * **Option C (Opioid addiction):** While chronic substance abuse can lead to cognitive blurring, it is classified under *Substance Use Disorders*. Amnesia specifically related to alcohol is termed Wernicke-Korsakoff syndrome, not biological amnesia. * **Option D (Hypothyroidism):** This is a metabolic cause of "pseudodementia." While it causes cognitive slowing, it is a reversible systemic condition rather than a primary degenerative biological amnesia. **Clinical Pearls for NEET-PG:** * **Organic vs. Functional:** Always distinguish between *Organic Amnesia* (head injury, seizures, dementia) and *Dissociative (Functional) Amnesia* (psychological defense mechanism). * **Ribot’s Law:** In biological amnesia/dementia, recent memories are lost first, while remote memories are preserved the longest. * **Anterograde Amnesia:** The inability to form new memories; it is the hallmark of early organic hippocampal damage.

Question 369: A 35-year-old patient recalls episodes where he smells a pungent odor, becomes sweaty, and loses consciousness. His family member reports that while unconscious, he was having facial twitching with lip-smacking movements. What is the most probable diagnosis?

A. Focal seizures (Correct Answer)
B. Hysteria
C. Atonic seizures
D. Myoclonic seizures

Explanation: **Explanation:** The clinical presentation is classic for **Focal Seizures with Impaired Awareness** (formerly known as Complex Partial Seizures), likely originating from the **Temporal Lobe**. **Why Focal Seizures is correct:** The patient experiences a sensory "aura" (olfactory hallucination/pungent odor), which is a hallmark of focal cortical involvement. The subsequent loss of consciousness accompanied by **automatisms** (lip-smacking) and autonomic symptoms (sweating) are characteristic of temporal lobe epilepsy. Facial twitching indicates motor involvement within the focal seizure. **Why the other options are incorrect:** * **Hysteria (Dissociative/Conversion Disorder):** While it can mimic seizures (pseudoseizures), the presence of specific olfactory auras and stereotyped motor patterns like lip-smacking strongly points toward an organic neurological etiology. * **Atonic Seizures:** These involve a sudden loss of muscle tone ("drop attacks") leading to collapse. They do not typically feature olfactory auras or complex automatisms. * **Myoclonic Seizures:** These are characterized by brief, shock-like jerks of a muscle or group of muscles, usually without a preceding aura or prolonged loss of consciousness with automatisms. **High-Yield Clinical Pearls for NEET-PG:** * **Temporal Lobe Epilepsy (TLE):** The most common site for focal seizures. Look for the "4 As": **A**ura (olfactory/gustatory), **A**utomatisms (lip-smacking, hand rubbing), **A**utonomic features, and **A**mnesia for the event. * **Olfactory Hallucinations:** When associated with seizures, these often suggest a lesion or focus in the **uncus** (uncinate fits). * **Todd’s Paralysis:** Post-ictal focal neurological deficit (like hemiparesis) following a focal seizure; a common distracter in exams.

Question 370: Acute uraemic syndrome causes disturbance in which of the following?

A. Affect
B. Consciousness (Correct Answer)
C. Thought
D. Memory

Explanation: ### Explanation **Correct Answer: B. Consciousness** **Medical Concept:** Acute uremic syndrome is a classic cause of **Delirium** (also known as Acute Confusional State). Delirium is defined by an acute, fluctuating disturbance in **consciousness** and attention, typically resulting from an underlying medical condition, substance intoxication, or metabolic derangement. In uremia, the accumulation of nitrogenous waste products and toxins crosses the blood-brain barrier, leading to global cerebral dysfunction. Since consciousness is the "theatre" upon which all other mental functions operate, its impairment is the hallmark of organic brain syndromes like uremia. **Analysis of Incorrect Options:** * **A. Affect:** While a patient’s emotional expression (affect) may become labile or irritable during uremia, this is a secondary symptom of the underlying clouded consciousness, not the primary diagnostic disturbance. * **C. Thought:** Disturbances in thought (like delusions) can occur in delirium, but they are fragmented and unsystematized. Primary thought disorders are more characteristic of functional psychoses like Schizophrenia. * **D. Memory:** While memory is impaired during an acute uremic episode, it is a consequence of the inability to register information due to impaired attention and consciousness. Isolated memory loss is more characteristic of Amnestic syndromes or Dementia. **High-Yield Clinical Pearls for NEET-PG:** * **Delirium vs. Dementia:** The key differentiator is that **Delirium** involves an impairment of **Consciousness** (clouding/fluctuation), whereas Dementia occurs in a state of clear consciousness. * **EEG Finding:** In metabolic encephalopathies like uremia, the EEG characteristically shows **generalized slowing** (theta and delta waves). * **Visual Hallucinations:** These are the most common type of hallucinations in organic brain syndromes (like uremia), unlike Schizophrenia where auditory hallucinations predominate. * **Asterixis:** Often seen in uremic syndrome, it is a physical sign of metabolic encephalopathy.

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Neuropsychological Assessment

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Risk Assessment

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Laboratory Investigations in Psychiatry

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Neuroimaging in Clinical Assessment

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Cultural Considerations in Assessment

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