Psychotic Disorders Practice Questions

Q: Worst prognosis is seen in which type of schizophrenia?

Simple. **Explanation:** The prognosis of Schizophrenia is determined by the age of onset, the nature of symptoms (positive vs. negative), and the speed of progression. **Why Simple Schizophrenia is the Correct Answer:** Simple Schizophrenia (ICD-10) is characterized by the early and insidious onset of **negative symptoms** (apathy, withdrawal, loss of drive) without the presence of overt hallucinations or delusions. Because it lacks "florid" psychotic symptoms, it often goes undiagnosed for years. It has a chronic, downhill course with poor response to typical antipsychotics and a very high risk of social drift, making it the subtype with the **worst prognosis**. **Analysis of Incorrect Options:** * **Paranoid Schizophrenia:** This subtype has the **best prognosis**. It typically has a later age of onset, preserved cognitive function, and responds well to medication because it is dominated by positive symptoms (delusions/hallucinations). * **Catatonic Schizophrenia:** This has a **good prognosis** regarding recovery from individual episodes. It shows an excellent and rapid response to Benzodiazepines (Lorazepam) and Electroconvulsive Therapy (ECT). * **Hebephrenic (Disorganized) Schizophrenia:** This has a **poor prognosis** due to early onset and severe personality deterioration, but it is generally considered slightly better than Simple Schizophrenia because the symptoms are more recognizable, allowing for earlier intervention. **NEET-PG High-Yield Pearls:** * **Best Prognosis:** Paranoid Schizophrenia. * **Worst Prognosis:** Simple Schizophrenia (followed by Hebephrenic). * **Good Prognostic Factors:** Late onset, female sex, presence of precipitating factors, acute onset, and predominant positive symptoms. * **Poor Prognostic Factors:** Early onset, male sex, insidious onset, family history, and predominant negative symptoms.

Q: A 33-year-old male traveling by flight started fighting with an air hostess. The man alleged that the air hostess was his wife, but she had changed her face so she could not be identified. This history is consistent with which of the following syndromes?

Fregoli syndrome. ### Explanation The correct answer is **Fregoli syndrome**. **1. Why Fregoli Syndrome is Correct:** Fregoli syndrome is a **delusional misidentification syndrome** where the patient believes that a familiar person (often a perceived persecutor) is following them or present in their environment by taking on the physical appearance of strangers. In this case, the patient believes the air hostess (a stranger) is actually his wife (a familiar person) who has "changed her face." The core psychopathology is the belief that different people are actually a single person in disguise. **2. Why the Other Options are Incorrect:** * **Capgras Syndrome:** This is the "mirror image" of Fregoli. The patient believes a familiar person (e.g., a spouse) has been replaced by an **identical-looking impostor**. Here, the face is the same, but the identity is different. * **Othello Syndrome:** Also known as **pathological jealousy**, this is a delusion that one’s spouse or partner is being unfaithful. It does not involve misidentification of faces. * **de Clerembault Syndrome:** Also known as **Erotomania**, this is the delusion that another person, usually of higher social status or a celebrity, is deeply in love with the patient. **3. High-Yield Clinical Pearls for NEET-PG:** * **Delusional Misidentification Syndromes (DMS):** These are often associated with organic brain lesions (especially in the right hemisphere or bifrontal regions) or schizophrenia. * **Intermetamorphosis:** Another DMS where the patient believes people have swapped physical and psychological identities with each other. * **Syndrome of Subjective Doubles:** The belief that a physical double of oneself exists and is leading an independent life. * **Management:** Treatment typically involves atypical antipsychotics (e.g., Risperidone) and addressing any underlying neurological cause.

Q: A 45-year-old male admits himself to the hospital, stating that the nurse treating him is an imposter, and his wife has replaced her to kill him. What is the most likely diagnosis?

Fregoli syndrome. ### Explanation The correct answer is **Fregoli syndrome**. This is a delusional misidentification syndrome characterized by the belief that different people are actually a single person in disguise. **1. Why Fregoli Syndrome is Correct:** In this clinical scenario, the patient believes a familiar person (his wife) has taken on the appearance of a stranger (the nurse) to follow or harm him. This "hyper-identification" involves the belief that a familiar individual is physically disguised as someone else. It is often associated with paranoid schizophrenia or organic brain injury. **2. Analysis of Incorrect Options:** * **Capgras Syndrome:** This is the opposite of Fregoli. The patient believes a familiar person (e.g., a spouse) has been replaced by an identical-looking **imposter**. In the question, the patient believes the "imposter" is actually his wife in disguise, which points to Fregoli. * **Cotard Syndrome:** Also known as "Walking Corpse Syndrome," the patient suffers from nihilistic delusions, believing they are dead, rotting, or have lost their internal organs or soul. * **Alport Syndrome:** This is a genetic disorder (Type IV collagen defect) characterized by glomerulonephritis, end-stage kidney disease, and hearing loss. It is a renal/ENT condition, not a psychiatric disorder. **3. NEET-PG High-Yield Pearls:** * **Delusional Misidentification Syndromes (DMS):** These are often linked to a disconnection between the visual recognition system and the emotional processing system (amygdala). * **Intermetamorphosis:** A related syndrome where the patient believes people swap identities with each other both physically and psychologically. * **Reduplicative Paramnesia:** The delusional belief that a location has been duplicated or moved to another site. * **Management:** Primarily involves antipsychotics (e.g., Risperidone) and treating any underlying organic cause.

Q: A husband suspects his wife is having an affair with another man. What is the diagnosis?

Delusion. **Explanation:** The correct answer is **Delusion**. A **delusion** is defined as a false, fixed belief that is firmly held despite incontrovertible evidence to the contrary and is not in keeping with the patient’s socio-cultural or educational background. In this scenario, the husband’s unfounded suspicion of his wife’s infidelity is a classic example of a **Delusion of Infidelity** (also known as **Conjugal Paranoia** or **Othello Syndrome**). This is a disorder of the **content of thought**. **Why other options are incorrect:** * **Perception:** This is the process of interpreting sensory stimuli. While delusions involve a misinterpretation of reality, they are categorized as thought disorders, not basic perceptual processes. * **Hallucination:** This is a sensory perception in the absence of an external stimulus (e.g., hearing voices when no one is speaking). It is a disorder of **perception**, whereas the husband’s suspicion is a belief-based issue. * **Amotivation:** This refers to a lack of drive or motivation to participate in activities. It is a "negative symptom" often seen in Schizophrenia, but it does not describe a false belief system. **Clinical Pearls for NEET-PG:** * **Othello Syndrome:** Specifically refers to a morbid delusion of infidelity, often associated with chronic alcoholism or organic brain disorders. * **Primary vs. Secondary Delusion:** A primary delusion (autochthonous) arises suddenly without a preceding mental event, while a secondary delusion is understandable in the context of other symptoms (like mood or hallucinations). * **De Clerambault’s Syndrome:** Also known as **Erotomania**, where the patient believes a person of higher status is in love with them. * **Capgras Syndrome:** The delusion that a familiar person has been replaced by an identical-looking impostor.

Q: Which of the following is NOT considered one of Eugene Bleuler's 4 A's of schizophrenia?

Anhedonia. **Explanation:** The concept of the **"4 A’s"** was introduced by **Eugen Bleuler** to describe the primary (fundamental) symptoms of schizophrenia. These symptoms represent the core psychological disturbances of the disorder, distinct from secondary symptoms like hallucinations or delusions. **Why Anhedonia is the correct answer:** **Anhedonia** (the inability to feel pleasure) is **not** one of Bleuler’s original 4 A’s. While it is a common "negative symptom" of schizophrenia in modern diagnostic criteria (like the DSM-5), it was not part of Bleuler's primary framework. **Analysis of the 4 A’s (Incorrect Options):** 1. **Autism (Option A):** Refers to a withdrawal into a private inner world, losing contact with external reality. 2. **Affect (Option B):** Specifically "Inappropriate Affect" or "Flattened Affect," where the patient's emotional expression is blunted or does not match the situation. 3. **Ambivalence (Option D):** The coexistence of contradictory emotions, ideas, or desires toward the same object or person at the same time. 4. **Association (The missing 4th A):** Refers to "Loosening of Associations," where the patient's thought process becomes fragmented and lacks logical connection. **High-Yield Clinical Pearls for NEET-PG:** * **Kurt Schneider’s First Rank Symptoms (FRS):** These are often contrasted with Bleuler’s 4 A’s. FRS includes audible thoughts, voices arguing, and somatic passivity. * **Bleuler’s Classification:** He divided symptoms into **Fundamental** (the 4 A’s) and **Accessory** (hallucinations and delusions). * **Mnemonic:** Remember **"AAAA"** — **A**ffect, **A**ssociation, **A**mbivalence, and **A**utism.

Q: What is the most common subtype of schizophrenia?

Paranoid type. **Explanation:** **Paranoid Schizophrenia** is the most common subtype of schizophrenia worldwide. It is characterized primarily by stable, systematized delusions (usually persecutory or grandiose) and auditory hallucinations. Unlike other subtypes, patients often exhibit relatively preserved cognitive functions and affect, which contributes to a later age of onset and a better overall prognosis regarding social and occupational functioning. **Analysis of Incorrect Options:** * **Simple Schizophrenia:** This is the rarest subtype. It is characterized by the early onset of negative symptoms (apathy, social withdrawal) without prominent hallucinations or delusions. It carries a very poor prognosis. * **Hebephrenic (Disorganized) Schizophrenia:** Characterized by disorganized speech, disorganized behavior, and flat or inappropriate affect. It typically has an early onset (puberty) and a poor prognosis. * **Catatonic Schizophrenia:** Characterized by marked psychomotor disturbances (stupor, waxy flexibility, or purposeless excitement). While classic in textbooks, its prevalence has significantly decreased in modern clinical practice due to early intervention. **High-Yield Clinical Pearls for NEET-PG:** * **Prognosis:** Paranoid type has the **best prognosis**, while Simple and Hebephrenic types have the **worst prognosis**. * **ICD-11 & DSM-5 Update:** It is crucial to note that modern classification systems (DSM-5 and ICD-11) have **removed** these clinical subtypes because they were found to be unstable over time and lacked diagnostic specificity. However, they remain high-yield for competitive exams. * **Age of Onset:** Paranoid schizophrenia typically presents later (25–35 years) compared to the Hebephrenic type (15–25 years).

Q: What is the time interval between the onset of acute and persistent psychotic disease?

1 month. ### Explanation The classification of psychotic disorders is primarily based on the **duration of symptoms**. In both the ICD-11 and DSM-5, the one-month mark is the critical diagnostic threshold that separates acute/transient psychotic episodes from more persistent conditions. **1. Why 1 Month is Correct:** According to the DSM-5, a **Brief Psychotic Disorder** is defined by symptoms lasting at least one day but **less than one month**, with an eventual full return to premorbid functioning. Once symptoms persist beyond **one month**, the diagnosis must be changed to **Schizophreniform Disorder** (which lasts 1–6 months) or eventually **Schizophrenia** (if symptoms persist for more than 6 months). Therefore, one month is the defining interval between an acute episode and a persistent disease process. **2. Why Other Options are Incorrect:** * **1 Week / 2 Weeks:** While some ICD-10 criteria for "Acute and Transient Psychotic Disorder" (ATPD) mention a 2-week crescendo for symptom onset, these are not the standard intervals used to differentiate acute from persistent disease categories. * **3 Weeks:** This duration holds no specific diagnostic significance in the classification of psychotic disorders in major psychiatric manuals. **3. High-Yield Clinical Pearls for NEET-PG:** * **Brief Psychotic Disorder:** Duration 1 month but 6 months (DSM-5) or > 1 month (ICD-11). * **Prognosis:** Brief psychotic disorder has the best prognosis, often characterized by a sudden onset and rapid resolution. * **Key Symptom Triad:** Delusions, Hallucinations, and Disorganized speech are the "core" positive symptoms required for these diagnoses.

Q: Good prognosis in schizophrenia is indicated by?

Affective symptoms. **Explanation:** Prognosis in schizophrenia is determined by several clinical factors that predict the long-term outcome and response to treatment. **Why Affective Symptoms are Correct:** The presence of **affective symptoms** (mood symptoms like depression or mania) is a strong indicator of a **good prognosis**. This is because patients with prominent mood features often have a "schizoaffective" presentation, which typically responds better to treatment and has a more episodic course compared to the chronic, deteriorating course of pure schizophrenia. **Analysis of Incorrect Options:** * **Soft Neurological Signs (A):** These are subtle impairments in sensory integration or motor coordination (e.g., dysdiadochokinesia). Their presence indicates underlying neurodevelopmental brain damage and is associated with a **poor prognosis**. * **Emotional Blunting (C):** This is a "Negative Symptom." Negative symptoms (apathy, anhedonia, poverty of speech) are notoriously resistant to antipsychotic medication and signify a **poor prognosis**. * **Insidious Onset (D):** A slow, gradual onset of symptoms usually means the disease has been progressing unnoticed for years, leading to significant social and cognitive decline. An **acute/sudden onset** is a feature of a **good prognosis**. **High-Yield Clinical Pearls for NEET-PG:** | **Good Prognostic Factors** | **Poor Prognostic Factors** | | :--- | :--- | | Late onset (older age) | Young/Early onset | | Acute/Sudden onset | Insidious/Gradual onset | | Obvious precipitating stressors | No clear stressors | | **Presence of Mood/Affective symptoms** | **Negative symptoms** (Blunting, etc.) | | Good premorbid adjustment | Poor premorbid history (socially isolated) | | Married/Strong social support | Single, divorced, or widowed | | Positive symptoms (Hallucinations/Delusions) | Structural brain changes (Enlarged ventricles) | | Female gender | Male gender |

Q: Schizophrenia mostly occurs in which age group?

Adolescents. **Explanation:** Schizophrenia is a chronic and severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior. The peak age of onset is typically in **late adolescence and early adulthood** (usually between ages 15 and 25 for males and 25 to 35 for females). This period coincides with critical neurodevelopmental changes and synaptic pruning in the prefrontal cortex. * **Adolescents (Correct):** Most cases manifest in the late teens or early twenties. While the prodromal phase may start earlier, the first psychotic episode typically occurs during this transition into adulthood. * **Children:** Childhood-onset schizophrenia (onset before age 13) is extremely rare and often presents with more severe neurocognitive deficits and a poorer prognosis. * **Middle age:** While "Late-onset Schizophrenia" can occur (after age 40), it is less common and more frequently seen in females. * **Old age:** Onset after age 60 is termed "Very-late-onset schizophrenia-like psychosis" and is rare, often requiring the exclusion of neurodegenerative diseases like dementia. **Clinical Pearls for NEET-PG:** 1. **Gender Dimorphism:** Males have an earlier onset (15–25 years) and a poorer prognosis compared to females (25–35 years), who often show a second peak of onset post-menopause. 2. **Schneider’s First Rank Symptoms (FRS):** These are diagnostic hallmarks, including audible thoughts, voices arguing/commenting, and thought withdrawal/insertion. 3. **Prognosis:** Good prognostic factors include late onset, female sex, presence of precipitating factors, and predominant positive symptoms. 4. **Dopamine Hypothesis:** Schizophrenia is primarily associated with increased dopaminergic activity in the mesolimbic pathway (positive symptoms) and decreased activity in the mesocortical pathway (negative symptoms).

Question 1

Worst prognosis is seen in which type of schizophrenia?

Accepted Answer

Simple

Answer

Paranoid

Answer

Catatonic

Answer

Hebephrenic

Question 2

A 33-year-old male traveling by flight started fighting with an air hostess. The man alleged that the air hostess was his wife, but she had changed her face so she could not be identified. This history is consistent with which of the following syndromes?

Accepted Answer

Fregoli syndrome

Answer

Capgras syndrome

Answer

Othello syndrome

Answer

de Clerembault syndrome

Question 3

A 45-year-old male admits himself to the hospital, stating that the nurse treating him is an imposter, and his wife has replaced her to kill him. What is the most likely diagnosis?

Accepted Answer

Fregoli syndrome

Answer

Capgras syndrome

Answer

Cotard syndrome

Answer

Alport syndrome

Question 4

A husband suspects his wife is having an affair with another man. What is the diagnosis?

Accepted Answer

Delusion

Answer

Perception

Answer

Hallucination

Answer

Amotivation

Question 5

Which of the following is NOT considered one of Eugene Bleuler's 4 A's of schizophrenia?

Accepted Answer

Anhedonia

Answer

Autism

Answer

Affect

Answer

Ambivalence

Question 6

What is the most common subtype of schizophrenia?

Accepted Answer

Paranoid type

Answer

Simple type

Answer

Hebephrenic type

Answer

Catatonic type

Question 7

What is the time interval between the onset of acute and persistent psychotic disease?

Accepted Answer

1 month

Answer

1 week

Answer

2 weeks

Answer

3 weeks

Question 8

Good prognosis in schizophrenia is indicated by?

Accepted Answer

Affective symptoms

Answer

Soft neurological signs

Answer

Emotional blunting

Answer

Insidious onset

Question 9

Schizophrenia mostly occurs in which age group?

Accepted Answer

Adolescents

Answer

Children

Answer

Middle age

Answer

Old age

Question 10

Which of the following hypotheses was initially proposed for the etiology of schizophrenia?

Accepted Answer

Dopamine hypothesis

Answer

Serotonin Hypothesis

Answer

Learned helplessness

Answer

Cognitive theory

Psychotic Disorders — MCQs

Psychotic Disorders — MCQs

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