Psychiatric Assessment and Diagnosis — MCQs

A middle-aged man is chronically preoccupied with his health. For many years, he feared that his irregular bowel functions meant he had cancer. Now, he is very preoccupied with having a serious heart disease, despite his physician's assurance that the occasional "extra beats" he detects when he checks his pulse are completely benign. What is his most likely diagnosis?

Psychiatric Assessment and Diagnosis Indian Medical PG Practice Questions and MCQs

Question 331: Which of the following is NOT a defense mechanism?

A. Derailment (Correct Answer)
B. Repression
C. Distortion
D. Undoing

Explanation: **Explanation:** The correct answer is **A. Derailment**. **1. Why Derailment is the correct answer:** Derailment is a **formal thought disorder**, not a defense mechanism. It is characterized by a breakdown in the logical connection between ideas, where the patient’s speech shifts from one topic to another that is completely unrelated or only obliquely linked. It is a hallmark sign of **Schizophrenia** and other psychotic disorders. **2. Why the other options are incorrect (Defense Mechanisms):** Defense mechanisms are unconscious psychological strategies used to protect the ego from anxiety. * **Repression (Option B):** A primary defense mechanism where unacceptable desires or traumatic memories are pushed into the unconscious mind (e.g., "forgetting" a childhood trauma). * **Distortion (Option C):** A narcissistic/immature defense mechanism where external reality is grossly reshaped to suit inner needs (e.g., hallucinations or megalomaniacal delusions). * **Undoing (Option D):** An auxiliary defense mechanism, common in **OCD**, where a person tries to "cancel out" an unacceptable action or thought by performing a ritualistic contrary act. **Clinical Pearls for NEET-PG:** * **Hierarchy of Defenses:** Remember the Vaillant classification. **Mature** (Sublimation, Altruism, Suppression, Humor), **Neurotic** (Repression, Undoing, Displacement), and **Immature/Narcissistic** (Projection, Denial, Distortion). * **Suppression vs. Repression:** Suppression is the only **conscious** defense mechanism (intentionally choosing not to think about a stressor). * **Derailment vs. Tangentiality:** In derailment, the patient moves between unrelated ideas; in tangentiality, the patient never answers the original question but stays on a single, albeit irrelevant, track.

Question 332: A 33-year-old person is found wandering in a new city. His identification indicates he is from out of town and has been missing from home for two days. He is well-groomed and denies remembering how he arrived at his current location. What is the most likely diagnosis?

A. Dementia
B. Dissociative amnesia
C. Dissociative fugue (Correct Answer)
D. Schizophrenia

Explanation: **Explanation:** The correct diagnosis is **Dissociative Fugue**, a subtype of dissociative amnesia characterized by sudden, unexpected travel away from home or one’s customary place of daily activities, accompanied by an inability to recall some or all of one’s past. **Why Dissociative Fugue is correct:** The patient exhibits the classic triad: **sudden travel** (wandering in a new city), **amnesia** for the journey/past, and a **well-groomed appearance** (indicating intact self-care and social functioning, unlike delirium or dementia). In a fugue state, the individual often appears "normal" to observers but cannot explain their presence in a new location. **Why other options are incorrect:** * **Dementia:** Typically involves chronic, progressive cognitive decline (memory, language, executive function). A 33-year-old being well-groomed and having sudden-onset wandering without global cognitive deficits makes this unlikely. * **Dissociative Amnesia:** While fugue is a subtype, "Dissociative Amnesia" usually refers to the inability to recall specific traumatic information without the component of purposeful travel. * **Schizophrenia:** Characterized by psychosis (hallucinations, delusions) and disorganized behavior. The patient’s well-groomed state and specific memory deficit regarding travel do not fit the profile of a disorganized or catatonic schizophrenic episode. **Clinical Pearls for NEET-PG:** * **ICD-10 vs. DSM-5:** In DSM-5, Dissociative Fugue is no longer a separate diagnosis but a **specifier** under Dissociative Amnesia. * **Trigger:** Often precipitated by severe psychosocial stress (e.g., marital, financial, or wartime trauma). * **Recovery:** Usually rapid and spontaneous; however, the patient may remain amnestic for the events that occurred *during* the fugue state.

Question 333: A man with intermittent hiccups has a persistent fear of dying, believing he has gastric cancer, despite all radiological investigations proving otherwise. What is the most probable diagnosis?

A. Hypochondriasis (Correct Answer)
B. Somatic symptom disorder
C. Conversion disorder
D. Delusional disorder

Explanation: **Explanation:** The patient is presenting with **Hypochondriasis** (now referred to as **Illness Anxiety Disorder** in DSM-5). The hallmark of this condition is a persistent preoccupation or fear of having a serious medical illness (e.g., gastric cancer) based on a misinterpretation of bodily symptoms (e.g., hiccups). This fear persists despite negative medical evaluations and reassurance from physicians. **Why the other options are incorrect:** * **Somatic Symptom Disorder:** While similar, the focus here is on the **distress caused by physical symptoms** (pain, fatigue) rather than the fear of a specific underlying disease. In Hypochondriasis, the anxiety is about the *diagnosis*, not the severity of the symptom itself. * **Conversion Disorder (Functional Neurological Symptom Disorder):** This involves a loss of voluntary motor or sensory function (e.g., blindness, paralysis, seizures) that cannot be explained by neurological pathology, often triggered by psychological stress. * **Delusional Disorder (Somatic Type):** In a delusion, the belief is fixed and held with absolute certainty. In Hypochondriasis, the patient usually acknowledges the *possibility* that their fear might be unfounded (overvalued idea), whereas a delusional patient cannot be reasoned with at all. **High-Yield Clinical Pearls for NEET-PG:** * **Duration:** Symptoms must persist for at least **6 months** for a diagnosis of Hypochondriasis. * **Doctor Shopping:** These patients frequently visit multiple specialists and undergo repeated investigations. * **Treatment:** The treatment of choice is **Cognitive Behavioral Therapy (CBT)**. SSRIs are used if there is comorbid anxiety or depression. * **Key Distinction:** If the patient’s belief is of "delusional intensity" (zero insight), the diagnosis shifts to Delusional Disorder.

Question 334: The Rorschach test is primarily used to measure which of the following?

A. Intelligence
B. Creativity
C. Personality (Correct Answer)
D. Neuroticism

Explanation: **Explanation:** The **Rorschach Inkblot Test** is a classic **projective personality test** used in psychiatric assessment. It consists of 10 standardized inkblots (5 achromatic, 2 black-and-red, and 3 multicolored). The core concept is that when a patient is presented with an ambiguous stimulus, they "project" their unconscious thoughts, emotions, and internal conflicts onto the image. By analyzing the patient's responses, clinicians can gain insights into their **personality structure**, emotional functioning, and thought processes. **Analysis of Options:** * **A. Intelligence:** Intelligence is measured by objective psychometric scales like the Wechsler Adult Intelligence Scale (WAIS) or Raven’s Progressive Matrices, not by inkblots. * **B. Creativity:** While the test requires imagination, its primary clinical purpose is diagnostic personality assessment, not the quantification of creative potential. * **D. Neuroticism:** While the Rorschach can detect neurotic traits, "Neuroticism" specifically refers to a dimension of the Five-Factor Model of personality, typically measured by objective inventories like the NEO-PI. **High-Yield Clinical Pearls for NEET-PG:** * **Scoring System:** The most widely used standardized scoring system for the Rorschach is the **Exner Comprehensive System**. * **Projective vs. Objective:** Unlike the MMPI (Minnesota Multiphasic Personality Inventory), which is an **objective** self-report inventory, the Rorschach is **projective**. * **Thematic Apperception Test (TAT):** Another high-yield projective test where patients tell stories about ambiguous pictures to reveal underlying motives and personality. * **Word Association Test:** Developed by **Carl Jung**, another projective technique used in personality assessment.

Question 335: What is the maximum score on the Mini-Mental State Examination?

A. 15
B. 27
C. 30 (Correct Answer)
D. 40

Explanation: **Explanation:** The **Mini-Mental State Examination (MMSE)**, also known as the Folstein test, is the most widely used clinical instrument for screening cognitive impairment and assessing the severity of dementia. **Why Option C is Correct:** The MMSE consists of a 30-point questionnaire. It evaluates five distinct areas of cognitive function: 1. **Orientation (10 points):** Time (5) and Place (5). 2. **Registration (3 points):** Repeating three named objects. 3. **Attention and Calculation (5 points):** Serial 7s or spelling "WORLD" backward. 4. **Recall (3 points):** Recalling the three objects previously registered. 5. **Language and Praxis (9 points):** Naming objects (2), repetition (1), three-stage command (3), reading (1), writing a sentence (1), and copying a complex polygon (1). **Why Other Options are Incorrect:** * **Option A (15):** This is too low; a score below 9 typically indicates severe cognitive impairment. * **Option B (27):** While 27 is often used as a clinical cut-off for "normal" cognitive function, it is not the maximum possible score. * **Option D (40):** This is the maximum score for the **Modified Mini-Mental State Examination (3MS)**, which is an expanded version of the original test, but not the standard MMSE. **High-Yield Clinical Pearls for NEET-PG:** * **Interpretation of Scores:** 24–30 (Normal), 18–23 (Mild impairment), 10–17 (Moderate impairment), and <10 (Severe impairment). * **Limitation:** The MMSE is heavily influenced by the patient’s **educational level** and language proficiency. * **Comparison:** Unlike the **Montreal Cognitive Assessment (MoCA)**, the MMSE is less sensitive for detecting Mild Cognitive Impairment (MCI). * **Key Task:** The "copying of intersecting pentagons" specifically tests **visuospatial constructional ability**.

Question 336: What is the term for the fear of strangers?

A. Algophobia
B. Xenophobia (Correct Answer)
C. Mysophobia
D. Thanatophobia

Explanation: **Explanation:** The correct answer is **Xenophobia**. In psychiatry and clinical psychology, phobias are categorized as intense, irrational fears of specific objects or situations. 1. **Xenophobia:** Derived from the Greek words *'xenos'* (stranger/guest) and *'phobos'* (fear). It refers to the morbid fear or dislike of strangers, foreigners, or anything perceived as foreign or strange. In a developmental context, "stranger anxiety" is a normal milestone in infants (usually appearing around 6–9 months), but persistent, irrational fear in adults is classified under specific phobias. **Analysis of Incorrect Options:** * **Algophobia:** The morbid fear of **pain**. It is often associated with patients suffering from chronic pain syndromes or hyperalgesia. * **Mysophobia:** The pathological fear of **contamination or germs**. This is frequently a core symptom in patients with Obsessive-Compulsive Disorder (OCD), leading to compulsive hand-washing. * **Thanatophobia:** The fear of **death** or the dying process. It is distinct from necrophobia (fear of dead bodies). **High-Yield Clinical Pearls for NEET-PG:** * **Acrophobia:** Fear of heights (most common specific phobia). * **Agoraphobia:** Fear of open spaces or situations where escape might be difficult (often associated with Panic Disorder). * **Treatment of Choice:** For specific phobias, the most effective treatment is **Cognitive Behavioral Therapy (CBT)** with **Systemic Desensitization** or **Exposure Therapy**. * **Pharmacotherapy:** Benzodiazepines or Beta-blockers (like Propranolol) may be used for short-term symptomatic relief in performance-related anxiety.

Question 337: Cortical blindness with confabulation is seen in?

A. Wernicke's Encephalopathy
B. Anton syndrome (Correct Answer)
C. Psychogenic amnesia
D. Korsakoff syndrome

Explanation: ### Explanation **Correct Option: B. Anton syndrome** Anton syndrome (also known as Anton-Babinski syndrome) is a rare condition where a patient is **cortically blind** but adamantly denies their vision loss. The hallmark of this syndrome is **anosognosia** (lack of insight into a deficit) and **confabulation**. When asked to describe their surroundings, the patient will invent detailed visual descriptions to fill the void of their blindness. It typically results from bilateral damage to the occipital lobes (visual cortex), often due to a posterior cerebral artery (PCA) stroke. **Analysis of Incorrect Options:** * **A. Wernicke's Encephalopathy:** This is an acute neurological emergency due to Thiamine (B1) deficiency. The classic triad is **Ophthalmoplegia** (usually 6th nerve palsy/nystagmus), **Ataxia**, and **Confusion**. While it involves eye signs, it does not cause cortical blindness or denial of vision. * **D. Korsakoff Syndrome:** This is the chronic phase of Thiamine deficiency. While it is famous for **confabulation** and anterograde amnesia, it does not involve cortical blindness. Patients confabulate to cover memory gaps, not visual loss. * **C. Psychogenic Amnesia:** This is a dissociative disorder characterized by a sudden retrograde loss of personal memory (autobiographical information), usually following severe stress. It does not have an organic basis like cortical blindness. **High-Yield Clinical Pearls for NEET-PG:** * **Anton Syndrome:** Cortical blindness + Anosognosia + Confabulation (Lesion: Bilateral Occipital Lobe). * **Capgras Syndrome:** The delusion that a familiar person has been replaced by an identical-looking impostor. * **Fregoli Syndrome:** The delusion that different people are actually a single person in disguise. * **Charles Bonnet Syndrome:** Visual hallucinations occurring in patients with significant visual impairment (but they have insight that the hallucinations aren't real).

Question 338: Which of the following is a reversible cause of dementia?

A. Toxic dementia (Correct Answer)
B. Alzheimer's disease
C. Multi-infarct dementia
D. Pick's disease

Explanation: **Explanation:** Dementia is a clinical syndrome characterized by a progressive decline in cognitive functions. For NEET-PG, it is crucial to distinguish between **irreversible (neurodegenerative)** and **reversible (secondary)** causes. **Why Toxic Dementia is Correct:** Toxic dementia refers to cognitive impairment resulting from exogenous substances such as heavy metals (lead, mercury), chronic alcohol abuse, or medications (anticholinergics, benzodiazepines). These are considered **reversible** because if the offending toxin is identified and removed early, or if nutritional deficiencies (like Thiamine in alcoholics) are corrected, the cognitive decline can be halted or partially reversed. **Analysis of Incorrect Options:** * **B. Alzheimer’s Disease:** The most common cause of dementia. It is a progressive, irreversible neurodegenerative disorder characterized by amyloid plaques and tau tangles. * **C. Multi-infarct Dementia (Vascular Dementia):** Caused by multiple strokes. While risk factors (hypertension, diabetes) can be managed to prevent further damage, the existing neuronal death from infarctions is permanent and irreversible. * **D. Pick’s Disease (Frontotemporal Dementia):** A neurodegenerative condition involving atrophy of the frontal and temporal lobes. It is progressive and currently has no cure. **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic for Reversible Dementias (DEMENTIA):** **D**rugs/Depression (Pseudodementia), **E**ndocrine (Hypothyroidism), **M**etabolic (B12 deficiency), **E**yes/Ears (Sensory deprivation), **N**ormal Pressure Hydrocephalus (NPH), **T**umor/Trauma (Subdural hematoma), **I**nfection (Neurosyphilis/HIV), **A**nemia. * **Normal Pressure Hydrocephalus (NPH) Triad:** Urinary incontinence, Gait ataxia, and Dementia ("Wet, Wobbly, and Wacky"). This is a classic reversible cause via shunting. * **Vitamin B12 deficiency** is a frequently tested reversible cause; look for "Subacute Combined Degeneration" in the history.

Question 339: Which of the following is NOT included under paraphilic disorders?

A. Homosexuality (Correct Answer)
B. Pedophilia
C. Voyeurism
D. Exhibitionism

Explanation: **Explanation:** The correct answer is **Homosexuality**. In modern psychiatry, homosexuality is considered a normal variation of human sexuality and is not classified as a mental disorder or a paraphilia. It was officially removed from the DSM (Diagnostic and Statistical Manual of Mental Disorders) by the APA in 1973 and later from the ICD-10 by the WHO in 1990. **Why the other options are incorrect:** Paraphilic disorders are characterized by intense, persistent sexual interests in objects, situations, or individuals that are outside of "normative" sexual interests, which cause significant distress or impairment to the individual or involve non-consenting persons. * **Pedophilia:** A paraphilic disorder involving sexual interest in prepubescent children. * **Voyeurism:** A paraphilic disorder involving the act of observing an unsuspecting person who is naked, disrobing, or engaging in sexual activity. * **Exhibitionism:** A paraphilic disorder involving the exposure of one's genitals to an unsuspecting person. **Clinical Pearls for NEET-PG:** * **Paraphilia vs. Paraphilic Disorder:** A *paraphilia* is a sexual interest, while a *paraphilic disorder* is a paraphilia that causes distress, impairment, or harm to others. * **Gender Distribution:** Most paraphilic disorders are diagnosed almost exclusively in males. * **Frotteurism:** Another high-yield paraphilia involving touching or rubbing against a non-consenting person in a crowded place. * **Treatment:** The mainstay of treatment is Cognitive Behavioral Therapy (CBT) and, in severe cases, anti-androgens or SSRIs to reduce libido.

Question 340: A middle-aged man is chronically preoccupied with his health. For many years, he feared that his irregular bowel functions meant he had cancer. Now, he is very preoccupied with having a serious heart disease, despite his physician's assurance that the occasional "extra beats" he detects when he checks his pulse are completely benign. What is his most likely diagnosis?

A. Somatization disorder
B. Hypochondriasis (Correct Answer)
C. Delusional disorder
D. Pain disorder

Explanation: **Explanation:** The patient’s presentation is classic for **Hypochondriasis** (now referred to as **Illness Anxiety Disorder** in DSM-5). The core feature is a chronic preoccupation with the fear of having a serious medical illness based on a misinterpretation of bodily symptoms (e.g., irregular bowel movements or "extra beats"). Despite negative medical evaluations and physician reassurance, the patient remains unconvinced, which is the hallmark of this condition. **Analysis of Options:** * **A. Somatization Disorder:** This involves a history of many physical complaints (pain, GI, sexual, and neurological) starting before age 30. The focus is on the **symptoms** themselves rather than the **fear of a specific underlying disease**. * **C. Delusional Disorder (Somatic type):** In hypochondriasis, the patient can usually acknowledge the possibility that their fear is unfounded (poor insight). In delusional disorder, the belief is fixed, unshakable, and often bizarre, lacking any degree of doubt. * **D. Pain Disorder:** This is characterized by pain as the primary focus of clinical distress, where psychological factors play a major role in the onset or severity. This patient’s concern is "heart disease," not chronic pain. **High-Yield Clinical Pearls for NEET-PG:** * **Duration:** Symptoms must persist for at least **6 months** for a diagnosis. * **Insight:** Patients with Hypochondriasis usually have "poor insight" but not "absent insight" (which would categorize it as a Delusion). * **Doctor Shopping:** These patients frequently visit multiple specialists and undergo repeated investigations. * **Management:** The goal is not to "cure" the symptoms but to improve coping. Regular, scheduled appointments with a single primary care physician are recommended to prevent unnecessary invasive testing.

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Clinical Interview Techniques

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Mental Status Examination

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Diagnostic Formulation

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Rating Scales and Questionnaires

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Psychological Testing

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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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Developmental Assessment

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Diagnostic Classification Systems

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