Psychotic Disorders — MCQs

Psychotic Disorders Indian Medical PG Practice Questions and MCQs

Question 131: The content of thought in delusional disorder, somatic type, is characterized by:

A. Preoccupation with a delusion of being ill with physical disease.
B. Preoccupation with a delusion of a bodily defect or dysfunction.
C. Preoccupation with an imagined physical defect.
D. Preoccupation with sensations related to bodily functions or odors. (Correct Answer)

Explanation: **Explanation:** In **Delusional Disorder, Somatic Type**, the central theme of the delusion involves bodily functions or sensations. According to DSM-5 and ICD criteria, these delusions typically manifest in specific forms: the conviction that the person emits a foul **odor** (e.g., from skin, mouth, or rectum), that there is an **infestation** of insects/parasites on or under the skin, or that certain internal organs are malfunctioning or misshapen. **Analysis of Options:** * **Option D (Correct):** This accurately describes the somatic subtype where patients are convinced of abnormal sensations (like crawling insects) or perceived odors that are not present. * **Option A (Incorrect):** This describes **Illness Anxiety Disorder** (formerly Hypochondriasis), where the patient is preoccupied with the *fear* or *idea* of having a serious disease based on misinterpretation of symptoms, rather than a fixed, false belief (delusion). * **Option B & C (Incorrect):** These are more characteristic of **Body Dysmorphic Disorder (BDD)**. In BDD, the preoccupation is with a perceived flaw in physical appearance (imagined defect) that is not observable to others. While BDD can occur with "absent insight" (delusional intensity), the core of Somatic Delusional Disorder is usually functional or sensory (odors/infestations) rather than purely aesthetic. **High-Yield Clinical Pearls for NEET-PG:** * **Monosymptomatic Hypochondriacal Psychosis:** An older term often used for Somatic Delusional Disorder. * **Ekbom Syndrome:** A specific somatic delusion of infestation (Delusional Parasitosis). * **Key Differentiator:** In Delusional Disorder, the belief is **fixed and non-bizarre**. Unlike Schizophrenia, there are no prominent hallucinations, thought disorder, or negative symptoms. * **Treatment:** Second-generation antipsychotics (e.g., Risperidone) are first-line. Historically, Pimozide was considered the drug of choice for delusional parasitosis.

Question 132: ECT is not useful in the treatment of which of the following conditions?

A. Chronic Schizophrenia (Correct Answer)
B. Catatonic Schizophrenia
C. Endogenous depression
D. Acute psychosis

Explanation: **Explanation:** Electroconvulsive Therapy (ECT) is a highly effective biological treatment in psychiatry, but its efficacy depends significantly on the **acuity** and **nature** of the symptoms. **1. Why Chronic Schizophrenia is the correct answer:** ECT is primarily indicated for acute, severe, or life-threatening psychiatric conditions. In **Chronic Schizophrenia**, where negative symptoms (apathy, withdrawal) and cognitive deficits predominate over a long period, ECT has shown poor results. It does not reverse the long-standing structural or functional changes associated with the chronic phase of the illness. **2. Analysis of Incorrect Options:** * **Catatonic Schizophrenia:** This is a **prime indication** for ECT. Patients in a catatonic stupor or excitement often respond rapidly to ECT, which can be life-saving if they are not eating or drinking. * **Endogenous Depression:** Severe depression (especially with psychotic features or suicidal ideation) is the **most common indication** for ECT. It provides a faster response than antidepressants. * **Acute Psychosis:** ECT is effective in managing acute psychotic episodes, especially when there is a risk of exhaustion, aggression, or when rapid symptom control is required. **High-Yield Clinical Pearls for NEET-PG:** * **Absolute Contraindication:** There are no absolute contraindications for ECT, but **Increased Intracranial Pressure (ICP)** is the most significant relative contraindication. * **Most Common Side Effect:** Retrograde amnesia (usually transient). * **Mechanism:** The therapeutic effect is derived from the **generalized tonic-clonic seizure**, not the electrical current itself. * **Electrode Placement:** Bilateral (Gold standard for efficacy) vs. Unilateral (fewer cognitive side effects).

Question 133: Impaired insight is evident in which of the following conditions?

A. Psychosomatic disorder
B. Anxiety neurosis
C. Post Traumatic Stress Disorder
D. Schizophrenia (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Schizophrenia** **Understanding Insight in Psychiatry** Insight refers to a patient's awareness of their own mental illness, the ability to recognize pathological symptoms (like hallucinations or delusions), and the realization that they need treatment. In psychiatry, the presence or absence of insight is a primary clinical feature used to differentiate between **Psychosis** and **Neurosis**. * **Schizophrenia (Psychosis):** This is a prototypical psychotic disorder characterized by a complete or partial loss of contact with reality. Patients typically have **impaired (absent) insight**; they do not believe their experiences (e.g., persecutory delusions) are part of an illness, but rather perceive them as objective reality. This lack of insight is often a major barrier to treatment compliance. **Analysis of Incorrect Options:** * **Anxiety Neurosis & PTSD:** These fall under the category of **Neurotic disorders**. In these conditions, reality testing remains intact. Patients are distressed by their symptoms (hyperarousal, palpitations, or flashbacks) and are fully aware that these experiences are abnormal and require medical help. Thus, insight is **preserved**. * **Psychosomatic Disorder:** While these patients may focus excessively on physical symptoms, they do not lose touch with reality in a psychotic sense. They generally seek medical consultation because they recognize something is "wrong," indicating **preserved insight** regarding the presence of distress. **Clinical Pearls for NEET-PG:** * **Insight Scale:** Insight is not "all-or-none" but is measured on a 6-point scale (ASIST or GAF). * **Psychosis vs. Neurosis:** * *Psychosis:* Insight absent, reality testing lost, personality disorganized (e.g., Schizophrenia, Mania). * *Neurosis:* Insight present, reality testing intact, personality organized (e.g., OCD, Phobias, Panic Disorder). * **Poor Prognosis:** In Schizophrenia, poor insight is a strong predictor of poor treatment adherence and higher relapse rates.

Question 134: The least likely good prognostic factor in a patient with Schizophrenia is?

A. Premorbid personality issues (Correct Answer)
B. Acute onset
C. Female gender
D. History of mood disorder in the family

Explanation: In Schizophrenia, prognosis is determined by the interplay of clinical presentation, demographics, and family history. **Explanation of the Correct Answer:** **Premorbid personality issues (Option A)** is a significant **poor prognostic factor**. A patient who had poor social adjustment, schizoid traits, or difficulty forming relationships prior to the onset of psychosis typically has a more insidious onset and a "deteriorating" course. This reflects a baseline lack of psychological resilience and social support, making full recovery less likely. **Explanation of Incorrect Options:** * **Acute Onset (Option B):** Sudden onset (usually triggered by a stressor) is a **good prognostic factor**. It suggests the brain was functioning well until a specific breaking point, unlike insidious onset which suggests a slow, structural decline. * **Female Gender (Option C):** Females generally have a **better prognosis** than males. They tend to have a later age of onset, better premorbid social functioning, and a better response to antipsychotic medication (partially due to the protective effects of estrogen). * **History of Mood Disorder in Family (Option D):** Interestingly, a family history of mood disorders (like Bipolar or Depression) is a **good prognostic factor** for a patient with schizophrenia. It suggests that the patient’s psychosis may have an "affective" component, which typically responds better to treatment than "pure" schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Best Prognostic Factor:** Presence of prominent **positive symptoms** (hallucinations/delusions) and **mood symptoms**. * **Worst Prognostic Factor:** Presence of prominent **negative symptoms** (apathy, withdrawal) and **early age of onset** (especially in males). * **Married status** is considered a good prognostic factor due to better social support. * **Living in a developing country** is statistically associated with a better prognosis for schizophrenia compared to developed nations (often attributed to lower "Expressed Emotion" in families).

Question 135: A false belief unexplained by reality, shared by a number of people, is termed as what?

A. Illusion
B. Obsession
C. Superstition (Correct Answer)
D. Delusion

Explanation: **Explanation:** The correct answer is **Superstition**. **1. Why Superstition is correct:** In psychiatry, a **superstition** is defined as a belief that is not based on reason or scientific knowledge, often involving the supernatural. The key distinguishing factor from a delusion is that a superstition is **shared by a number of people** within a specific culture or subculture. Because it is a socially or culturally sanctioned belief, it is not considered a sign of individual psychopathology, even if it is "unexplained by reality." **2. Why the other options are incorrect:** * **Illusion (Option A):** This is a sensory phenomenon, not a belief. It is the **misinterpretation of a real external stimulus** (e.g., mistaking a rope for a snake in the dark). * **Obsession (Option B):** These are recurrent, persistent, and intrusive **thoughts, urges, or images** that cause anxiety. Unlike a belief, the individual usually recognizes them as irrational and tries to ignore or suppress them (ego-dystonic). * **Delusion (Option D):** While a delusion is also a false belief, it is **fixed, idiosyncratic (held only by the individual), and not shared** by others of the same cultural or religious background. It persists despite clear evidence to the contrary. **Clinical Pearls for NEET-PG:** * **Delusion vs. Overvalued Idea:** A delusion is held with absolute certainty, whereas an overvalued idea is a solitary abnormal belief that is less firmly held and lacks the "fixed" quality of a delusion. * **Cultural Context:** Always evaluate a patient’s belief system within their cultural framework. If a belief is common in the patient's community (e.g., "evil eye"), it is a **superstition**, not a delusion. * **Primary vs. Secondary Delusion:** Primary delusions (Autochthonous) arise suddenly without a preceding mental event; secondary delusions are understandable in the context of other symptoms like mood or hallucinations.

Question 136: Which of the following is FALSE regarding delusional disorder?

A. Delusion is a disorder of thought content.
B. The patient holds a false belief.
C. Delusions of persecution are the most common subtype.
D. Hallucinations are typically present. (Correct Answer)

Explanation: **Explanation:** **Delusional Disorder** is characterized by the presence of one or more non-bizarre delusions (beliefs about situations that could occur in real life) lasting for at least **one month**. **Why Option D is the Correct (False) Statement:** In Delusional Disorder, **hallucinations are typically absent**. If they do occur, they are not prominent and are usually related to the delusional theme (e.g., the sensation of being infested with insects in the somatic subtype). A key diagnostic criterion is that the patient’s functioning is not markedly impaired, and behavior is not obviously odd or bizarre, which distinguishes it from Schizophrenia where hallucinations and disorganized behavior are hallmark features. **Analysis of Other Options:** * **Option A:** Delusion is indeed a **disorder of thought content**. It is defined as a fixed, false belief that is out of keeping with the patient’s social and cultural background and is held with absolute conviction despite contrary evidence. * **Option B:** By definition, a delusion is a **false belief**. * **Option C:** **Persecutory type** is clinically recognized as the most common subtype of delusional disorder, where the individual believes they are being conspired against, cheated, or harassed. **NEET-PG High-Yield Pearls:** * **Subtypes:** Erotomanic (De Clerambault’s Syndrome), Grandiose, Jealous (Othello Syndrome), Persecutory, and Somatic (e.g., Ekbom’s Syndrome/Monosymptomatic Hypochondriacal Psychosis). * **Age of Onset:** Usually middle to late life (older than Schizophrenia). * **Treatment:** Difficult to treat; **Atypical antipsychotics** are the first-line pharmacological treatment, though SSRIs may help in somatic types. Therapeutic alliance is crucial.

Question 137: What type of schizophrenia is associated with mental retardation?

A. Von Gogh syndrome
B. Paranoid schizophrenia
C. Catatonic schizophrenia
D. Simple schizophrenia (Correct Answer)

Explanation: **Explanation:** **Simple Schizophrenia** (ICD-10: F20.6) is characterized by the insidious development of "negative symptoms" (apathy, social withdrawal, loss of drive) without the presence of overt "positive symptoms" like hallucinations or delusions. It is the subtype most frequently associated with **mental retardation (Intellectual Disability)** and a poor premorbid personality. Patients often show a progressive decline in social and occupational functioning, leading to a "drift" into lower socioeconomic strata. **Analysis of Incorrect Options:** * **A. Van Gogh Syndrome:** This is not a subtype of schizophrenia; it refers to a condition where an individual performs self-mutilation (usually cutting off an ear) or insists on surgical interventions, often associated with psychosis or personality disorders. * **B. Paranoid Schizophrenia:** This is the most common subtype, characterized by stable delusions and hallucinations. It typically has a later onset and is associated with the **best prognosis** and preserved cognitive function compared to other types. * **C. Catatonic Schizophrenia:** This involves prominent psychomotor disturbances (stupor, waxy flexibility, or excitement). While it involves significant impairment, it is not specifically linked to baseline mental retardation. **High-Yield Clinical Pearls for NEET-PG:** * **Simple Schizophrenia:** Has the **worst prognosis** among all subtypes due to its insidious onset and poor response to antipsychotics. * **Hebephrenic (Disorganized) Schizophrenia:** Associated with the earliest age of onset and disorganized speech/behavior. * **Schneiderian First Rank Symptoms (SFRS):** These are notably **absent** or rare in Simple Schizophrenia. * **Rule of Thirds:** 1/3 of patients recover, 1/3 have moderate impairment, and 1/3 remain severely disabled.

Question 138: Floccinaucinihilipilification is seen in:

A. Alzheimer's disease
B. Lewy body dementia
C. Punch drunk syndrome
D. Delirium (Correct Answer)

Explanation: **Explanation:** **Floccinaucinihilipilification** (often used interchangeably with **Carphology** or **Floccillation**) refers to the purposeless, involuntary picking or grasping at bedclothes, imaginary objects, or the air. This phenomenon is a classic sign of **Delirium**, particularly in the hypoactive or mixed subtypes. **Why Delirium is correct:** Delirium is an acute, fluctuating disturbance in attention and awareness caused by an underlying medical condition. Floccinaucinihilipilification occurs due to severe clouding of consciousness and visual hallucinations/illusions. It indicates a state of profound metabolic or toxic encephalopathy, reflecting the brain's disorganized processing of sensory input. **Why the other options are incorrect:** * **Alzheimer’s Disease (A) & Lewy Body Dementia (B):** While these dementias involve cognitive decline, they are chronic and progressive. While "picking" behaviors can occur in late-stage dementia, they are not the hallmark diagnostic sign as they are in the acute presentation of delirium. * **Punch Drunk Syndrome (C):** Also known as Chronic Traumatic Encephalopathy (CTE), this is a progressive degenerative disease found in people with a history of repetitive brain trauma (e.g., boxers). It presents with parkinsonism, ataxia, and behavioral changes, but not acute carphology. **High-Yield Clinical Pearls for NEET-PG:** * **Carphology/Floccillation:** Picking at bedsheets. * **Crocydismus:** Another synonym for picking at imaginary objects. * **Delirium vs. Dementia:** The key differentiator is the **acute onset** and **fluctuating course** of delirium. * **EEG in Delirium:** Characteristically shows **generalized slowing** (except in Delirium Tremens, where it shows fast activity). * **Visual Hallucinations:** These are much more common in Delirium than in Schizophrenia.

Question 139: What is a delusion?

A. Comprehensible
B. Reasonable
C. Both
D. None (Correct Answer)

Explanation: ### Explanation A **delusion** is defined as a fixed, false belief that is firmly held despite incontrovertible evidence to the contrary and is not consistent with the patient’s educational, cultural, or social background. **Why "None" is the correct answer:** By definition, a delusion is characterized by its **irrationality** and **lack of logic**. * **Not Comprehensible:** Delusions often lack a logical flow or a basis in reality that a healthy individual can follow. In many psychotic disorders (like schizophrenia), delusions are "bizarre," meaning they are physically impossible and completely beyond the realm of human experience. * **Not Reasonable:** A delusion is, by nature, an unreasonable belief. It is held with extraordinary conviction even when presented with logical proof that the belief is false. If a belief were reasonable or based on reality, it would not be classified as a delusion. **Analysis of Incorrect Options:** * **A & B (Comprehensible/Reasonable):** These terms describe "Overvalued Ideas" or normal beliefs. An overvalued idea is a plausible belief that is pursued beyond the bounds of reason but lacks the fixed, false, and idiosyncratic nature of a true delusion. --- ### High-Yield Clinical Pearls for NEET-PG: 1. **Primary vs. Secondary Delusions:** Primary delusions (Autochthonous ideas) appear suddenly without a preceding mental event, whereas secondary delusions arise in response to other psychopathological experiences (e.g., a depressed patient believing they are rotting inside). 2. **Jasper’s Criteria:** Karl Jaspers defined delusions by three criteria: **Certainty** (held with absolute conviction), **Incorrigibility** (unchangeable by proof), and **Impossibility/Falsity** of content. 3. **Bizarre vs. Non-Bizarre:** Non-bizarre delusions (e.g., being followed by the police) are characteristic of **Delusional Disorder**, while bizarre delusions (e.g., aliens replacing organs without scars) are more suggestive of **Schizophrenia**. 4. **Key Distinction:** Always differentiate a delusion from a **hallucination** (a sensory perception without a stimulus). A delusion is a disorder of **thought content**.

Question 140: All are true about Ganser's syndrome except:

A. Approximate answers
B. Apparent clouding of consciousness
C. Only found in prisoners (Correct Answer)
D. Hallucinations

Explanation: **Ganser’s Syndrome** (also known as "nonsense syndrome" or "prison psychosis") is a rare dissociative disorder characterized by the production of **approximate answers** (*vorbeireden*). ### Explanation of Options: * **Why Option C is the correct answer (The Exception):** While Ganser’s syndrome was historically described in prisoners awaiting trial (to achieve secondary gain like avoiding punishment), it is **not exclusively** found in them. It can occur in patients with severe personality disorders, organic brain syndromes, or following head trauma. * **Option A (Approximate answers):** This is the hallmark feature. The patient gives answers that are "near-misses" or slightly off, indicating they understand the question but provide a wrong answer (e.g., saying a dog has five legs or $2 + 2 = 5$). * **Option B (Clouding of consciousness):** Patients often appear disoriented or in a "twilight state," showing a decreased awareness of their surroundings. * **Option D (Hallucinations):** Visual or auditory hallucinations are common associated features, often contributing to the "pseudo-psychotic" presentation. ### High-Yield Clinical Pearls for NEET-PG: 1. **Classification:** Currently classified under **Dissociative Disorders** (ICD-10/DSM-5), though it shares features with Factitious Disorder. 2. **The Tetrad of Ganser’s:** * Approximate answers (*Vorbeireden*) * Clouding of consciousness * Somatic conversion symptoms * Hallucinations 3. **Recovery:** Typically, the syndrome has a sudden onset and a rapid recovery, often followed by **amnesia** for the episode. 4. **Differential Diagnosis:** Must be distinguished from **Malingering**, where the patient consciously and deliberately fakes symptoms for a specific external incentive.

Practice by Chapter

Schizophrenia: Epidemiology and Etiology

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Schizophrenia: Clinical Features

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Schizophrenia: Treatment

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Schizoaffective Disorder

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Delusional Disorders

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Brief Psychotic Disorder

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Substance-Induced Psychotic Disorders

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Psychosis in Medical Conditions

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First Episode Psychosis

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Treatment-Resistant Psychosis

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Rehabilitation in Psychotic Disorders

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Outcome and Prognosis

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