Psychotic Disorders — MCQs

Psychotic Disorders Indian Medical PG Practice Questions and MCQs

Question 51: Agarophobia is defined as:

A. Fear of closed spaces
B. Fear of open spaces or crowds (Correct Answer)
C. Fear of death
D. Fear of fire

Explanation: **Explanation:** **Agoraphobia** is a type of anxiety disorder characterized by intense fear or anxiety triggered by real or anticipated exposure to a wide range of situations. According to the DSM-5, the core feature is the fear of being in places or situations from which **escape might be difficult** or help might not be available in the event of developing panic-like symptoms. This typically includes open spaces (parking lots, bridges), enclosed spaces (shops, cinemas), standing in line, being in a crowd, or being outside of the home alone. **Analysis of Options:** * **Option B (Correct):** Agoraphobia literally translates from Greek as "fear of the marketplace." It specifically involves fear of open spaces and crowded areas where the individual feels trapped or vulnerable. * **Option A (Incorrect):** Fear of closed or confined spaces is termed **Claustrophobia**. * **Option C (Incorrect):** Fear of death or the process of dying is known as **Thanatophobia**. * **Option D (Incorrect):** Fear of fire is termed **Pyrophobia**. **Clinical Pearls for NEET-PG:** * **Comorbidity:** Agoraphobia is frequently associated with **Panic Disorder**. If a patient experiences recurrent panic attacks leading to the avoidance of specific situations, both diagnoses should be considered. * **Diagnosis:** Per DSM-5, the fear/anxiety must be present in at least **two** different agoraphobic situations (e.g., using public transport AND being in a crowd). * **Treatment:** The gold standard treatment is a combination of **Cognitive Behavioral Therapy (CBT)**, specifically graded exposure therapy, and **SSRIs** (Selective Serotonin Reuptake Inhibitors).

Question 52: A 28-year-old female presents with complaints of reduced sleep and disorganized behavior for 9 months. She believes a camera is fixed behind her head that constantly follows her. Which of the following is the most likely diagnosis?

A. Psychotic depression
B. Paranoid schizophrenia (Correct Answer)
C. Delusional disorder
D. Insomnia

Explanation: **Explanation:** The patient presents with **disorganized behavior** and a **delusion of being followed** (persecutory/bizarre delusion) persisting for **9 months**. According to ICD-11 and DSM-5 criteria, a diagnosis of Schizophrenia requires symptoms (such as delusions, hallucinations, or disorganized speech/behavior) to persist for at least 1 month (ICD) or 6 months (DSM), with significant social or occupational dysfunction. **Why Paranoid Schizophrenia is correct:** The presence of a complex delusion (camera fixed behind the head) combined with disorganized behavior and a chronic course (9 months) fits the classic profile of Schizophrenia. The "Paranoid" subtype is characterized by prominent delusions and/or auditory hallucinations without significant negative symptoms or catatonia at the forefront. **Why other options are incorrect:** * **Psychotic Depression:** Requires a primary mood disturbance (pervasive sadness, anhedonia) with mood-congruent delusions. There is no mention of depressed mood here. * **Delusional Disorder:** Characterized by non-bizarre delusions lasting ≥1 month. However, disorganized behavior and the "bizarre" nature of the camera delusion (physically impossible) point strongly toward Schizophrenia rather than Delusional Disorder. * **Insomnia:** This is merely a symptom (reduced sleep) and does not account for the psychotic features or behavioral changes. **NEET-PG High-Yield Pearls:** * **Duration Criteria:** Schizophreniform disorder (<6 months) vs. Schizophrenia (>6 months). * **Schneider’s First Rank Symptoms (FRS):** Though no longer mandatory for diagnosis, delusions of being controlled or "passivity phenomena" are classic indicators of Schizophrenia. * **Prognosis:** Paranoid schizophrenia generally has a **better prognosis** and later age of onset compared to the Hebephrenic (disorganized) subtype.

Question 53: A man reports a history of a fight with his neighbour. The next day, he began to feel that the police are following him and that his brain is being controlled by radio waves emanating from his neighbour. The history is suggestive of which psychiatric sign/symptom?

A. Thought insertion
B. Passivity (Correct Answer)
C. Delusion of persecution
D. Obsession

Explanation: ### Explanation The correct answer is **Passivity (B)**. **1. Why Passivity is Correct:** Passivity phenomena (also known as "Made" phenomena or delusions of control) occur when an individual experiences their feelings, impulses, or motor actions as being under the external control of another person or agency. In this case, the patient believes his **brain is being controlled** by radio waves. This loss of personal agency—where the "self" is no longer the author of its own thoughts or actions—is a hallmark of Schneiderian First Rank Symptoms (SFRS) of Schizophrenia. **2. Why the Other Options are Incorrect:** * **A. Thought Insertion:** While related to passivity, this specifically refers to the belief that foreign thoughts are being "put into" the mind. The question describes a broader control of the "brain" (organ/function) rather than just the insertion of a specific thought. * **C. Delusion of Persecution:** The patient does believe the police are following him (persecutory ideation), but the **core psychiatric sign** highlighted by the "brain being controlled by radio waves" is passivity. In NEET-PG, if multiple symptoms are present, the one describing "control" or "influence" usually points toward passivity/SFRS. * **D. Obsession:** These are ego-dystonic, repetitive, intrusive thoughts that the patient recognizes as their own. Here, the patient attributes the control to an external source (ego-syntonic delusion), ruling out obsession. **3. Clinical Pearls for NEET-PG:** * **Schneider’s First Rank Symptoms (SFRS):** Include passivity, thought alienation (insertion, withdrawal, broadcast), and specific types of auditory hallucinations (running commentary, third-person). * **Passivity of Affect, Impulse, and Volition:** These are the three subtypes where the patient feels their emotions, drives, or movements are "made" by an external force. * **Key Differentiator:** If the patient says "I am being followed," it is **Persecution**. If the patient says "My actions are being directed by a remote," it is **Passivity**.

Question 54: Which statement is true regarding the age and sex distribution of Schizophrenia?

A. The most common age of onset is greater than 50 years.
B. Early onset is a good prognostic factor.
C. Male sex is a poor prognostic factor. (Correct Answer)
D. Males are more prone to develop the disease.

Explanation: **Explanation:** The epidemiology and prognosis of Schizophrenia are high-yield topics for NEET-PG. While the **incidence and prevalence** of Schizophrenia are roughly equal between genders, the clinical course and onset differ significantly. **1. Why Option C is Correct:** Male sex is considered a **poor prognostic factor**. On average, males have an earlier age of onset (15–25 years) compared to females (25–35 years). Males typically present with more **negative symptoms** (apathy, withdrawal), poorer premorbid adjustment, more structural brain abnormalities, and a less favorable response to neuroleptics. In contrast, females often have a better prognosis due to later onset and the protective effect of estrogen. **2. Why Other Options are Incorrect:** * **Option A:** The peak age of onset is **15–25 years for males** and **25–35 years for females**. Onset after age 45 is classified as Late-onset Schizophrenia and is relatively rare. * **Option B:** **Early onset is a poor prognostic factor.** The earlier the disease starts, the more it interferes with social/occupational development and the more likely it is to be associated with structural brain changes. * **Option D:** The **lifetime prevalence is equal** in both males and females (approximately 1%). Males are not "more prone" to the disease; they simply tend to develop it earlier and more severely. **High-Yield Clinical Pearls for NEET-PG:** * **Good Prognostic Factors:** Late onset, female sex, presence of mood symptoms (especially depression), positive symptoms (hallucinations/delusions), married status, and clear precipitating stressors. * **Poor Prognostic Factors:** Early onset, male sex, negative symptoms, family history of schizophrenia, and insidious onset. * **Bimodal Onset in Females:** Females show a second peak of incidence after age 40–45 (post-menopausal).

Question 55: Ambivalence is most commonly associated with which of the following conditions?

A. Depression
B. Generalized anxiety disorder
C. Schizophrenia (Correct Answer)
D. Obsessive-compulsive disorder

Explanation: **Explanation:** **Ambivalence** is defined as the simultaneous existence of contradictory emotions, attitudes, or desires toward the same object, person, or situation (e.g., loving and hating someone at the same time). **Why Schizophrenia is correct:** Ambivalence is one of the **"4 As" of Schizophrenia** described by **Eugen Bleuler**. Bleuler considered these the "primary" or fundamental symptoms of the disorder. In schizophrenia, ambivalence is often profound, leading to "volitional paralysis" where the patient is unable to make even simple decisions because of conflicting internal impulses. **Why the other options are incorrect:** * **Depression:** While patients may feel indecisive or hopeless, the core feature is a pervasive low mood and anhedonia, not the specific structural ego-splitting seen in ambivalence. * **Generalized Anxiety Disorder (GAD):** This is characterized by excessive worry and apprehension. While patients may struggle with decisions due to fear of outcomes, it does not involve the classic Bleulerian ambivalence. * **Obsessive-Compulsive Disorder (OCD):** Patients often experience "ambitendency" or doubt (*folie du doute*), but this is related to uncertainty and the need for symmetry or safety, rather than the fundamental emotional splitting seen in schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Bleuler’s 4 As:** **A**mbivalence, **A**utism (social withdrawal), **A**ffective flattening, and **A**ssociative looseness. * **Kurt Schneider’s First Rank Symptoms (FRS):** These are different from Bleuler’s symptoms and focus on hallucinations and delusions (e.g., thought insertion, broadcasting). * Ambivalence in schizophrenia is specifically **"Affective Ambivalence"** (conflicting feelings) and **"Ambitendency"** (conflicting motor impulses).

Question 56: A 35-year-old woman who needs help with dressing and showering often giggles and laughs for no apparent reason. She spends most of her day rocking, muttering softly to herself, or looking at her reflection in a small mirror. What is the most likely diagnosis?

A. Schizophreniform disorder
B. Catatonia
C. Shared psychotic disorder
D. Schizophrenia, disorganized type (Correct Answer)

Explanation: **Explanation:** The clinical presentation describes a patient with **Disorganized Schizophrenia** (formerly known as Hebephrenic Schizophrenia). This subtype is characterized by a triad of disorganized speech, disorganized behavior, and flat or inappropriate affect. **Why Option D is correct:** 1. **Inappropriate Affect:** The patient "giggles and laughs for no apparent reason," which is a classic sign of emotional incongruity. 2. **Disorganized Behavior:** Mirror-gazing (narcissistic preoccupation) and rocking are common behavioral oddities. 3. **Impaired Activities of Daily Living (ADL):** The need for help with dressing and showering indicates a severe decline in social and occupational functioning, which is more pronounced in the disorganized type compared to the paranoid type. **Why other options are incorrect:** * **A. Schizophreniform disorder:** This requires the same symptoms as schizophrenia but with a duration of **more than 1 month but less than 6 months**. The chronic nature of the patient’s self-care deficit suggests a longer duration. * **B. Catatonia:** While rocking is a motor symptom, catatonia is primarily defined by stupor, waxy flexibility, mutism, or purposeless agitation. The prominent inappropriate affect and mirror-gazing point specifically toward the disorganized subtype. * **C. Shared psychotic disorder (Folie à deux):** This involves the transmission of delusional beliefs from one person to another in a close relationship. There is no evidence of a "primary" or "secondary" case here. **NEET-PG High-Yield Pearls:** * **Disorganized Schizophrenia** has the **earliest onset** (usually mid-teens) and the **worst prognosis** among all subtypes. * **Mirror-gazing** is a characteristic feature often mentioned in exams to hint at Hebephrenia. * According to **ICD-10**, Hebephrenic schizophrenia is characterized by "shallow and inappropriate affect" and "fragmentary delusions." * *Note:* In **DSM-5**, specific subtypes of schizophrenia have been removed in favor of a dimensional approach, but they remain high-yield for NEET-PG based on ICD-10 classifications.

Question 57: A 45-year-old male has a blood sample showing increased levels of homovanillic acid. This patient is most likely suffering from which condition?

A. Dementia
B. Schizophrenia (Correct Answer)
C. Depression
D. Parkinson's disease

Explanation: ### Explanation **Correct Answer: B. Schizophrenia** The core pathophysiology of **Schizophrenia** is explained by the **Dopamine Hypothesis**, which suggests that the symptoms of the disorder result from overactivity of dopaminergic neurons. **Homovanillic Acid (HVA)** is the primary metabolic byproduct of **Dopamine** degradation. In patients with Schizophrenia, particularly during acute psychotic episodes, there is an increased turnover of dopamine in the brain, leading to elevated levels of HVA in the blood (plasma), cerebrospinal fluid (CSF), and urine. **Analysis of Incorrect Options:** * **A. Dementia:** Primarily associated with a deficiency of **Acetylcholine** (especially in Alzheimer’s) and neuronal loss. HVA levels are typically normal or decreased. * **C. Depression:** Linked to the "Monoamine Hypothesis," involving deficiencies in **Serotonin (5-HT)** and **Norepinephrine**. The primary metabolite studied here is **5-HIAA** (5-Hydroxyindoleacetic acid), which is often decreased. * **D. Parkinson’s Disease:** Characterized by the degeneration of dopaminergic neurons in the substantia nigra. This leads to a **deficiency** of dopamine; therefore, HVA levels would be **decreased**, not increased. **NEET-PG High-Yield Pearls:** * **HVA (Homovanillic Acid):** Major metabolite of Dopamine. * **VMA (Vanillylmandelic Acid):** Major metabolite of Norepinephrine and Epinephrine (High in Pheochromocytoma). * **5-HIAA:** Major metabolite of Serotonin (Low in depression/suicidal behavior; High in Carcinoid syndrome). * **MHPG (3-methoxy-4-hydroxyphenylglycol):** A metabolite of Norepinephrine often studied in depressive and anxiety disorders. * In Schizophrenia, **Positive symptoms** are linked to increased dopamine in the **mesolimbic pathway**, while **Negative symptoms** are linked to decreased dopamine in the **mesocortical pathway**.

Question 58: Schneider's first-rank symptoms include all of the following except?

A. Delusional perception
B. Thought insertion
C. Third-person auditory hallucinations
D. Perplexity (Correct Answer)

Explanation: **Explanation:** Kurt Schneider (1959) identified a group of symptoms known as **First-Rank Symptoms (FRS)** which, in the absence of organic brain disease, are highly suggestive of Schizophrenia. **Why Perplexity is the correct answer:** **Perplexity** is a state of cognitive uncertainty or confusion often seen in the early stages of psychosis (Trema phase) or in acute and transient psychotic disorders. While it is a common clinical feature, it is **not** part of Schneider’s original list of 11 First-Rank Symptoms. **Analysis of incorrect options (Included in FRS):** * **Delusional Perception (A):** A two-stage phenomenon where a normal perception is suddenly given a private, idiosyncratic, and delusional meaning (e.g., "The traffic light turned red, so I knew I was the King of England"). * **Thought Insertion (B):** A "thought alienation" symptom where the patient believes thoughts are being put into their mind by an external agency. * **Third-person Auditory Hallucinations (C):** Hearing voices talking about the patient in the third person or providing a running commentary on their actions. **High-Yield Clinical Pearls for NEET-PG:** * **The 11 FRS include:** 1. **Auditory Hallucinations:** Voices arguing, Voices commenting, Audible thoughts (Gedankenlautwerden). 2. **Thought Alienation:** Insertion, Withdrawal, Broadcasting. 3. **Made Phenomena (Passivity):** Made Volition (acts), Made Affect (feelings), Made Impulses. 4. **Delusional Perception.** 5. **Somatic Passivity** (bodily sensations imposed by external agency). * **Note:** FRS are no longer required for a diagnosis in DSM-5 or ICD-11, as they lack high specificity (they can occur in Bipolar Disorder). * **Mnemonic:** Remember the **"ABCD"** of FRS: **A**uditory hallucinations (3rd person), **B**roadcasting of thoughts, **C**ontrolled feelings/acts (Passivity), **D**elusional perception.

Question 59: Waxy flexibility is characteristic of which condition?

A. Excitatory catatonia
B. Stuporous catatonia (Correct Answer)
C. Obsessive-Compulsive Disorder
D. All of the above

Explanation: **Explanation:** **Waxy flexibility (Cerea Flexibilitas)** is a classic psychomotor symptom where a patient offers initial resistance to being moved, but then allows their limbs to be placed in a position which they then maintain for a prolonged period (like a lead pipe or warm wax). 1. **Why Stuporous Catatonia is correct:** Catatonia is a neuropsychiatric syndrome characterized by motor abnormalities. It is broadly divided into two types: **Stuporous (Retarded)** and **Excited**. Waxy flexibility is a hallmark of the stuporous subtype, along with mutism, posturing, and negativism. In this state, the patient is conscious but unresponsive to external stimuli, maintaining fixed, often uncomfortable positions. 2. **Why other options are incorrect:** * **Excitatory Catatonia:** This is characterized by purposeless, excessive motor activity, agitation, shouting, and impulsivity. While it is a form of catatonia, waxy flexibility is specifically a feature of the inhibited/stuporous state. * **Obsessive-Compulsive Disorder (OCD):** OCD involves intrusive thoughts (obsessions) and repetitive behaviors (compulsions). It does not involve the gross psychomotor disturbances or muscular rigidity seen in catatonia. **High-Yield Clinical Pearls for NEET-PG:** * **Drug of Choice:** Benzodiazepines (specifically **Lorazepam**) are the first-line treatment for catatonia (the "Lorazepam Challenge Test" is used for diagnosis). * **Definitive Treatment:** If BZDs fail or if the condition is life-threatening (Malignant Catatonia), **Electroconvulsive Therapy (ECT)** is the treatment of choice. * **Gegenhalten (Paratonia):** Often confused with waxy flexibility; it is a form of resistance where the patient resists passive movement with a force proportional to the stimulus. * **Mitmachen:** The patient moves their body in the direction of a slight push, despite being told to resist.

Question 60: Which subtype of schizophrenia is typically associated with late onset and a good prognosis?

A. Simple schizophrenia
B. Hebephrenic schizophrenia
C. Catatonic schizophrenia (Correct Answer)
D. Paranoid schizophrenia

Explanation: ### Explanation The correct answer is **Catatonic Schizophrenia (Option C)**. **Why Catatonic Schizophrenia is the correct choice:** In the context of traditional subtypes (ICD-10/DSM-IV), **Catatonic Schizophrenia** is characterized by prominent psychomotor disturbances (stupor, rigidity, or excitement). It typically has a **sudden onset** and occurs later in life compared to disorganized types. Most importantly, it carries the **best prognosis** among all subtypes because patients often respond rapidly and dramatically to Benzodiazepines (Lorazepam) and Electroconvulsive Therapy (ECT). **Analysis of Incorrect Options:** * **A. Simple Schizophrenia:** Characterized by an early, insidious onset of negative symptoms (apathy, withdrawal) without prominent hallucinations or delusions. It has a **very poor prognosis** due to its chronic, progressive nature. * **B. Hebephrenic (Disorganized) Schizophrenia:** Typically starts in adolescence (early onset, 15–25 years). It is marked by disorganized speech and flat/inappropriate affect. It carries a **poor prognosis** due to rapid personality deterioration. * **D. Paranoid Schizophrenia:** While this subtype also has a **late onset** (25–35 years) and a relatively better prognosis than the hebephrenic type (due to preserved cognitive function), it is generally considered second to Catatonic Schizophrenia in terms of immediate recovery potential and treatment response. **High-Yield Clinical Pearls for NEET-PG:** * **Best Prognosis:** Catatonic Schizophrenia. * **Worst Prognosis:** Simple Schizophrenia (followed by Hebephrenic). * **Most Common Subtype:** Paranoid Schizophrenia. * **Treatment of Choice for Catatonia:** Lorazepam (Amobarbital was used historically—the "Amytal Interview"). * **Life-threatening Catatonia:** If associated with autonomic instability, it is called "Malignant Catatonia," requiring urgent ECT.

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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