Psychiatric Assessment and Diagnosis — MCQs

Psychiatric Assessment and Diagnosis Indian Medical PG Practice Questions and MCQs

Question 301: The content of thought in olfactory reference syndrome is:

A. Erotic
B. Infidelity
C. Love
D. Foul odour (Correct Answer)

Explanation: **Explanation:** **Olfactory Reference Syndrome (ORS)** is a psychiatric condition characterized by the persistent, false belief that one emits a foul or offensive body odor (e.g., breath, sweat, or flatulence) which is noticeable to others. This leads to significant distress, social anxiety, and repetitive behaviors like excessive showering or constant checking for odors. **Why the correct answer is right:** * **D. Foul odour:** The core psychopathology of ORS is the preoccupation with a **malodorous smell**. Patients misinterpret the neutral actions of others (like opening a window or sneezing) as reactions to their perceived smell. In modern classification (ICD-11), it is categorized under "Obsessive-Compulsive or Related Disorders." **Why the incorrect options are wrong:** * **A. Erotic:** Erotic themes are characteristic of **Erotomania (de Clerambault’s syndrome)**, where the patient believes a person of higher status is in love with them. * **B. Infidelity:** This is the hallmark of **Delusional Jealousy (Othello Syndrome)**, where the patient is convinced their partner is being unfaithful without evidence. * **C. Love:** Similar to erotic themes, delusions of love are associated with Erotomania rather than sensory-based reference syndromes. **High-Yield Clinical Pearls for NEET-PG:** * **Insight:** Insight in ORS can range from poor to absent (delusional). * **Social Isolation:** Patients often become "housebound" due to the shame of their perceived odor. * **Differential Diagnosis:** Must be distinguished from **Monosymptomatic Hypochondriacal Psychosis** and temporal lobe epilepsy (where olfactory hallucinations are brief and paroxysmal). * **Treatment:** Managed with SSRIs (for OCD-like symptoms) and low-dose atypical antipsychotics.

Question 302: Which of the following is true about delirium?

A. Clouding of consciousness
B. Disorientation (Correct Answer)
C. Visual perceptual disturbances
D. All are true

Explanation: **Explanation:** Delirium (Acute Confusional State) is an acute, transient, and reversible syndrome characterized by a global impairment of cognitive functions. **1. Why "Disorientation" is the Correct Answer:** While all options are features of delirium, **disorientation** (specifically to time and place) is a hallmark clinical sign. In the context of standard psychiatric examinations and textbooks like Kaplan & Sadock, disorientation is considered a core diagnostic feature resulting from the underlying impairment in attention and awareness. It is often the most readily assessable sign during a bedside mental status examination. **2. Analysis of Other Options:** * **Clouding of Consciousness:** This refers to a reduction in the clarity of awareness of the environment. While it is the *pathophysiological basis* of delirium, "disorientation" is the clinical manifestation. * **Visual Perceptual Disturbances:** These are very common in delirium (especially visual hallucinations and illusions), but they are not present in every single case. Some patients may present with purely hypoactive delirium without prominent hallucinations. * **Why "All are true" is often debated:** In many competitive exams, if a specific hallmark sign is listed alongside general features, the most "defining" clinical sign is preferred. However, clinically, all three are features of delirium. **High-Yield Clinical Pearls for NEET-PG:** * **Core Feature:** Disturbance of **attention** (inability to direct, focus, sustain, or shift attention). * **EEG Finding:** Characteristically shows **generalized slowing** (Theta and Delta waves), except in Alcohol Withdrawal Delirium (Delirium Tremens), where EEG shows fast activity. * **Diurnal Variation:** Symptoms typically fluctuate, worsening at night (**Sundowning**). * **Visual Hallucinations:** Most common type of hallucination in organic brain syndromes like delirium. * **Treatment of Choice:** Low-dose **Haloperidol** (Antipsychotic). Avoid benzodiazepines unless the delirium is due to alcohol or sedative withdrawal.

Question 303: Fixation of hysteria is related to which of the following stages of psychosexual development?

A. Genital
B. Anal
C. Oral
D. Phallic (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Phallic** **1. Why Phallic is Correct:** According to Sigmund Freud’s Psychoanalytic Theory, **Hysteria** (now primarily categorized under Dissociative and Conversion disorders) is rooted in the **Phallic stage** (ages 3–6 years). During this stage, the child experiences the **Oedipus complex** (in boys) or **Electra complex** (in girls). Fixation occurs due to unresolved conflicts regarding sexual identity and desires toward the opposite-sex parent. In adulthood, this manifests as "hysterical" symptoms—converting psychological distress into physical symptoms—as a defense mechanism against repressed sexual impulses. **2. Why Other Options are Incorrect:** * **A. Genital Stage:** This is the final stage (puberty onwards) representing mature sexuality. Fixation here is not typically linked to a specific classic neurosis but rather to the inability to form healthy adult relationships. * **B. Anal Stage (1–3 years):** Fixation here is associated with **Obsessive-Compulsive Disorder (OCD)** and "Anal-retentive" personality traits (orderliness, obstinacy, and parsimony). * **C. Oral Stage (0–1 year):** Fixation at this stage is linked to **Depression**, substance abuse, and "Oral" personality traits like dependency or excessive optimism/pessimism. **3. Clinical Pearls for NEET-PG:** * **Oral Stage Fixation:** Depression, Schizophrenia. * **Anal Stage Fixation:** Obsessive-Compulsive Neurosis. * **Phallic Stage Fixation:** Hysteria (Conversion Disorder). * **Defense Mechanism in Hysteria:** The primary defense mechanism used in Conversion Disorder is **Repression** and **Symbolization**. * **La Belle Indifference:** A classic sign of Hysteria where the patient shows a surprising lack of concern regarding their severe physical disability (e.g., sudden paralysis).

Question 304: Astasia-abasia is typically seen in which of the following conditions?

A. Parkinsonism
B. Alzheimer's disease
C. Schizophrenia
D. Hysterical conversion disorder (Correct Answer)

Explanation: **Explanation:** **Astasia-abasia** is a psychogenic gait disturbance characterized by the inability to stand (**astasia**) or walk (**abasia**) in a normal manner, despite having intact motor strength, sensation, and coordination when tested in a supine position. 1. **Why Option D is Correct:** Astasia-abasia is a classic manifestation of **Conversion Disorder** (Functional Neurological Symptom Disorder). The patient typically displays a dramatic, staggering, or "wild" gait, often swaying violently without actually falling, or falling only when a bystander is there to catch them. This "bizarre" presentation lacks an anatomical or physiological basis and is often associated with *la belle indifférence* (a lack of concern regarding the disability). 2. **Why Other Options are Incorrect:** * **A. Parkinsonism:** Characterized by a "shuffling gait," festination, and postural instability due to basal ganglia dysfunction, not psychogenic factors. * **B. Alzheimer’s Disease:** While late-stage patients may develop gait apraxia, the primary pathology is cognitive decline and cortical atrophy. * **C. Schizophrenia:** Patients may exhibit catatonic posturing or stereotypies, but astasia-abasia is not a diagnostic feature of this psychotic disorder. **NEET-PG High-Yield Pearls:** * **Conversion Disorder (ICD-11: Dissociative Neurological Symptom Disorder):** Symptoms are not intentionally produced (unlike Malingering or Factitious Disorder) and are often triggered by psychological stress. * **Gait Characteristics:** In astasia-abasia, the patient often uses "economical" movements to maintain balance, which paradoxically requires more core strength than normal walking. * **Key Differential:** Always rule out midline cerebellar tumors, which can also cause truncal ataxia, though the presentation is rarely as "theatrical" as in conversion.

Question 305: What is a hypnopompic hallucination?

A. A hallucination experienced while falling asleep
B. A hallucination experienced while awakening (Correct Answer)
C. A hallucination occurring after head trauma
D. A hallucination occurring after a convulsion

Explanation: **Explanation:** **1. Why Option B is Correct:** Hypnopompic hallucinations are sensory perceptions (usually visual or auditory) that occur during the transition from sleep to wakefulness. The term is derived from the Greek words *hypnos* (sleep) and *pompe* (sending away). These are considered **functional hallucinations** and are often physiological, though they are frequently associated with sleep disorders like narcolepsy. **2. Analysis of Incorrect Options:** * **Option A:** Hallucinations experienced while falling asleep are called **hypnagogic hallucinations** (*agogos* = leading to). A common mnemonic to distinguish the two is: **"G"** for **G**oing to sleep (Hypnagogic) and **"P"** for **P**opping out of bed (Hypnopompic). * **Option C:** Hallucinations following head trauma are typically organic in nature and may be part of post-concussive syndrome or delirium, but they do not carry a specific "hypno-" prefix. * **Option D:** Hallucinations occurring after a convulsion are termed **post-ictal** hallucinations. These are common in temporal lobe epilepsy. **3. NEET-PG High-Yield Pearls:** * **Narcolepsy Tetrad:** Hypnagogic/Hypnopompic hallucinations, Cataplexy, Sleep Paralysis, and Excessive Daytime Sleepiness. * **Nature of Perception:** Unlike schizophrenic hallucinations, these are usually brief, vivid, and the individual often regains insight immediately upon fully waking. * **Pseudo-hallucinations:** These are often classified as pseudo-hallucinations because they occur in the subjective space and the patient often recognizes them as unreal once fully alert. * **Charles Bonnet Syndrome:** Another high-yield "visual hallucination" topic; it occurs in elderly patients with significant visual impairment (e.g., macular degeneration) with preserved insight.

Question 306: Events occurring in the past one week are an example of which type of memory?

A. Recent memory (Correct Answer)
B. Remote memory
C. Working memory
D. Delayed memory

Explanation: ### Explanation Memory is clinically categorized based on the duration and nature of information retention. In a Mental Status Examination (MSE), assessing these subtypes helps localize brain pathology and differentiate between various psychiatric and neurological disorders. **Why the Correct Answer is Right:** * **Recent Memory (Option A):** This refers to the ability to recall information and events from the past few hours to a few days or weeks (typically up to the last **2–4 weeks**). Asking a patient about what they ate for breakfast, recent news events, or activities over the **past week** specifically tests recent memory. This is often impaired in early stages of dementia and Korsakoff’s psychosis. **Why the Incorrect Options are Wrong:** * **Remote Memory (Option B):** This involves the recall of events from the distant past (years ago), such as childhood details or historical dates. It is usually preserved until the late stages of cognitive decline (Ribot’s Law). * **Working Memory (Option C):** A component of immediate memory, it involves holding and manipulating information for a very short period (seconds). It is typically tested using the "Digit Span" or "Serial 7s" tasks. * **Delayed Memory (Option D):** This is a subset of recent memory where a patient is asked to recall specific items (e.g., three words) after a short interval of 5 to 10 minutes. **Clinical Pearls for NEET-PG:** * **Immediate Memory:** Recall within seconds (Tested by Digit Span). * **Anterograde Amnesia:** Inability to form new memories (Recent memory loss). * **Retrograde Amnesia:** Loss of memories formed before a brain injury (Remote memory loss). * **Confabulation:** Filling memory gaps with fabricated stories, classically seen in **Wernicke-Korsakoff Syndrome** due to Thiamine (B1) deficiency. * **Brain Region:** The **Hippocampus** and temporal lobes are critical for converting short-term to long-term (recent) memory.

Question 307: Cognition is defined as:

A. Perception
B. Thought (Correct Answer)
C. Action
D. Feeling

Explanation: **Explanation:** **1. Why "Thought" is the Correct Answer:** In psychiatry and cognitive psychology, **Cognition** is the mental action or process of acquiring knowledge and understanding through **thought**, experience, and the senses. It encompasses high-level functions such as reasoning, memory, attention, judgment, and problem-solving. In the hierarchy of mental functions, "Thought" is the core component that allows an individual to process information and form ideas, making it the most accurate definition of cognition among the choices provided. **2. Analysis of Incorrect Options:** * **Perception (Option A):** This refers to the process of interpreting sensory stimuli (e.g., seeing or hearing). While perception provides the *input* for cognition, it is considered a separate sensory-processing function. * **Action (Option C):** This refers to **Conation** (the mental faculty of purpose, desire, or will to act). Action is the behavioral output resulting from cognitive processes, not the cognition itself. * **Feeling (Option D):** This refers to **Affect** or **Emotion**. In psychiatry, the "Trilogy of Mind" distinguishes between Cognition (thinking), Affection (feeling), and Conation (acting). **3. Clinical Pearls for NEET-PG:** * **The Trilogy of Mind:** Remember the triad of **Cognition** (Thought), **Affect** (Emotion), and **Conation** (Will/Action). * **Cognitive Impairment:** Common in Delirium, Dementia, and Schizophrenia. * **MSE Tip:** When assessing cognition during a Mental State Examination (MSE), clinicians evaluate consciousness, orientation, memory, attention, and abstract thinking. * **Cognitive Distortions:** These are biased ways of thinking (e.g., "all-or-nothing thinking") central to the pathology of Depression and the basis of Cognitive Behavioral Therapy (CBT).

Question 308: All of the following suggest organic disease except?

A. Early age onset (Correct Answer)
B. Absence of family history of psychiatric illness
C. Absence of previous history of psychiatric illness
D. Absence of any apparent psychological precipitant

Explanation: **Explanation:** In psychiatric practice, distinguishing between **Functional (Primary)** psychiatric disorders (e.g., Schizophrenia, Bipolar Disorder) and **Organic (Secondary)** psychiatric disorders (caused by systemic medical conditions, drugs, or brain injury) is a critical clinical skill. **Why "Early age onset" is the correct answer:** Functional psychiatric disorders typically manifest during adolescence or early adulthood (e.g., Schizophrenia usually starts in the late teens to mid-20s). In contrast, **late-age onset** (e.g., a first episode of psychosis or mania in a 50-year-old) is a major "red flag" for an underlying organic cause, such as a brain tumor, metabolic derangement, or neurodegenerative disease. Therefore, early age onset suggests a functional rather than an organic etiology. **Analysis of Incorrect Options:** * **B & C (Absence of Family/Previous History):** Functional disorders often have a strong genetic component and a relapsing-remitting course. If a patient presents with sudden psychiatric symptoms without any personal or family history of mental illness, clinicians must prioritize ruling out an organic cause (e.g., autoimmune encephalitis). * **D (Absence of Psychological Precipitant):** While functional disorders can occur without stress, the sudden appearance of severe symptoms in the absence of any psychological trigger often points toward a biological or systemic medical insult. **High-Yield Clinical Pearls for NEET-PG:** * **Organic vs. Functional:** Visual hallucinations, fluctuating consciousness (delirium), and abnormal vital signs strongly suggest an **Organic** cause. Auditory hallucinations and clear consciousness are more typical of **Functional** disorders. * **The "Rule of 40":** Any first-episode psychiatric symptom in a patient over age 40 should be considered organic until proven otherwise. * **Common Organic Mimics:** Hypothyroidism (depression), SLE (psychosis), and Vitamin B12 deficiency (cognitive decline/mania).

Question 309: What is the IQ range considered to be indicative of profound intellectual disability?

A. 50-70
B. 25-50
C. 70-80
D. <25 (Correct Answer)

Explanation: ### Explanation Intellectual Disability (ID), formerly known as mental retardation, is characterized by significant limitations in both intellectual functioning (IQ) and adaptive behavior. According to the ICD-10 and DSM-IV classifications, ID is categorized into four levels based on IQ scores. **Why the Correct Answer is Right:** * **Option D (<25):** This represents **Profound Intellectual Disability**. Individuals in this category constitute about 1–2% of the ID population. They typically have minimal sensorimotor functioning, require constant supervision, and possess very limited communication skills, often relying on non-verbal cues. **Analysis of Incorrect Options:** * **Option A (50–70):** This is **Mild Intellectual Disability**. It is the most common type (85%). These individuals are "educable" and can usually achieve academic skills up to the 6th-grade level and live independently with minimal support. * **Option B (25–50):** This range covers **Moderate (35–50)** and **Severe (20–35)** ID. * *Moderate:* "Trainable"; can perform supervised unskilled work. * *Severe:* Can learn basic self-care and simple conversational skills but require significant support. * **Option C (70–80):** This is classified as **Borderline Intellectual Functioning**. It is not considered a category of intellectual disability but rather a range where individuals may struggle with complex academic tasks. **Clinical Pearls for NEET-PG:** * **Most Common Cause:** Genetic factors (Down Syndrome is the most common chromosomal cause; Fragile X is the most common inherited cause). * **Assessment:** IQ is measured using scales like the **Wechsler Adult Intelligence Scale (WAIS)** or **Binet-Kamat Test (BKT)** in India. * **DSM-5 Update:** Note that DSM-5 now emphasizes **adaptive functioning** (conceptual, social, and practical domains) rather than IQ scores alone to determine the severity of Intellectual Disability.

Question 310: A 47-year-old man's wife reports a personality change over the past 3 months. While being interviewed, the patient answers every question with the same three words. Which symptom best describes this behavior?

A. Negative symptoms
B. Disorientation
C. Concrete thinking
D. Perseveration (Correct Answer)

Explanation: **Explanation:** The correct answer is **Perseveration**. This clinical sign is characterized by the persistent repetition of a specific response (such as a word, phrase, or gesture) despite the absence or cessation of the original stimulus. In this case, the patient’s inability to shift his mental set, resulting in the same three-word answer for every question, is a classic manifestation of perseveration. **Why the other options are incorrect:** * **Negative symptoms:** These are characteristic of schizophrenia and include the "5 A's" (Anhedonia, Affective flattening, Alogia, Avolition, and Attention impairment). While Alogia (poverty of speech) involves restricted speech, it does not specifically refer to the repetitive, "stuck" nature of perseveration. * **Disorientation:** This refers to a lack of awareness regarding time, place, or person. While a disoriented patient might give incorrect answers, they do not typically repeat the same phrase for every query. * **Concrete thinking:** This is the inability to think abstractly (e.g., inability to interpret proverbs). The patient focuses on literal meanings rather than the symbolic, which is distinct from repetitive speech patterns. **Clinical Pearls for NEET-PG:** * **Localization:** Perseveration is a hallmark sign of **Frontal Lobe dysfunction** (specifically the prefrontal cortex). * **Differential Diagnosis:** It is commonly seen in Organic Brain Syndromes, such as **Frontotemporal Dementia (Pick’s Disease)**, Traumatic Brain Injury, and advanced Schizophrenia. * **Distinction:** Do not confuse Perseveration with **Echolalia** (repeating what the interviewer says) or **Palilalia** (repeating one’s own words with increasing frequency). * **Personality Change + Perseveration:** In a middle-aged patient, this combination strongly suggests a frontal lobe lesion or early-onset dementia.

Practice by Chapter

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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