Psychotic Disorders — MCQs

Psychotic Disorders Indian Medical PG Practice Questions and MCQs

Question 111: What is true about late-onset schizophrenia?

A. Onset after 45 years (Correct Answer)
B. Onset between 25-30 years
C. Prognosis is poor
D. Olfactory hallucinations are common

Explanation: ### Explanation **1. Why Option A is Correct:** Schizophrenia typically presents in late adolescence or early adulthood. However, **Late-onset Schizophrenia** is defined as the onset of symptoms **after the age of 45**. It is more common in women and is often characterized by well-organized paranoid delusions and auditory hallucinations. **2. Analysis of Incorrect Options:** * **Option B (Onset between 25-30 years):** This is the typical age of onset for "early-onset" or "standard" schizophrenia (males: 15–25 years; females: 25–35 years). Onset after 60 years is specifically termed "Very-late-onset schizophrenia-like psychosis." * **Option C (Prognosis is poor):** This is incorrect. Late-onset schizophrenia generally has a **better prognosis** than early-onset forms. These patients usually have better premorbid social and occupational functioning, fewer negative symptoms (like apathy or withdrawal), and a better response to lower doses of antipsychotic medication. * **Option D (Olfactory hallucinations are common):** Auditory hallucinations remain the most common type in late-onset schizophrenia. Olfactory or gustatory hallucinations are rare and should always prompt an investigation into organic causes, such as temporal lobe epilepsy or tumors. **3. High-Yield Clinical Pearls for NEET-PG:** * **Gender Ratio:** Unlike early-onset schizophrenia (where M=F), late-onset is significantly more common in **females**. * **Symptom Profile:** Late-onset cases show **fewer negative symptoms** and less formal thought disorder compared to younger patients. * **Sensory Deficits:** There is a strong association between late-onset schizophrenia and **sensory impairments**, particularly hearing loss (presbycusis). * **Treatment:** Patients usually require **lower doses** of antipsychotics due to age-related changes in metabolism and increased sensitivity to extrapyramidal side effects.

Question 112: All of the following are associated with a better prognosis in schizophrenia, EXCEPT:

A. Married status
B. Late onset
C. Acute onset
D. Negative symptoms (Correct Answer)

Explanation: In schizophrenia, prognosis is determined by a variety of clinical and demographic factors. Understanding these is crucial for NEET-PG, as "Prognostic Factors" is a high-yield topic. **Why "Negative Symptoms" is the correct answer:** Negative symptoms (e.g., apathy, anhedonia, affective flattening, alogia, and avolition) are associated with a **poor prognosis**. These symptoms often reflect underlying structural brain changes (like ventricular enlargement) and are generally less responsive to typical antipsychotic medications compared to positive symptoms. Their presence usually indicates a chronic, deteriorating course and poor social/occupational functioning. **Analysis of Incorrect Options (Factors for Better Prognosis):** * **A. Married status:** Being married or having a strong social support system is a positive prognostic factor. It suggests better premorbid social competence and provides a buffer for rehabilitation. * **B. Late onset:** Onset in later life (20s-30s) is associated with a better prognosis. Conversely, early onset (childhood or adolescence) is linked to poorer outcomes and more significant cognitive decline. * **C. Acute onset:** A sudden, "stormy" onset (often triggered by a clear stressor) usually predicts a better recovery compared to an insidious, slow onset where the illness creeps in over years. **High-Yield Clinical Pearls for NEET-PG:** * **Good Prognosis Indicators:** Female gender, presence of mood symptoms (depression/anxiety), positive symptoms (hallucinations/delusions), and absence of family history. * **Poor Prognosis Indicators:** Male gender, family history of schizophrenia, insidious onset, and early age of onset. * **Key Fact:** The presence of **Positive Symptoms** actually predicts a *better* response to treatment than negative symptoms.

Question 113: Gustatory hallucinations are most commonly associated with which of the following conditions?

A. Temporal lobe epilepsy (Correct Answer)
B. Grand mal epilepsy
C. Anxiety disorders
D. Tobacco dependence

Explanation: **Explanation:** **Temporal lobe epilepsy (TLE)** is the correct answer because gustatory (taste) and olfactory (smell) hallucinations are classic "auras" associated with seizures originating in the temporal lobe, specifically the uncus or the insular cortex. These sensory disturbances occur due to abnormal electrical discharges in the areas of the brain responsible for processing taste and smell. In psychiatry and neurology, a metallic or unpleasant taste preceding a seizure is a hallmark clinical sign of TLE. **Analysis of Incorrect Options:** * **Grand mal epilepsy (Generalized Tonic-Clonic Seizures):** While these involve the whole brain, they typically present with sudden loss of consciousness without the localized sensory auras (like taste) characteristic of focal seizures like TLE. * **Anxiety disorders:** These commonly present with physical symptoms like palpitations, sweating, or "butterflies in the stomach," but do not typically manifest as true gustatory hallucinations. * **Tobacco dependence:** Chronic smoking can lead to a *diminished* sense of taste (hypogeusia) or a coated tongue, but it does not cause the perception of a taste in the absence of a stimulus (hallucination). **High-Yield Clinical Pearls for NEET-PG:** * **Olfactory Hallucinations:** Also most commonly associated with **Temporal Lobe Epilepsy** (specifically "Uncinate fits"). * **Visual Hallucinations:** Most common in **Organic Brain Syndromes** (e.g., Delirium) and Alcohol Withdrawal (Delirium Tremens). * **Auditory Hallucinations:** Most common in **Schizophrenia** and other functional psychoses. * **Tactile Hallucinations:** Often seen in **Cocaine dependence** (Formication/Cocaine bugs) and Alcohol withdrawal. * **Hypnagogic/Hypnopompic Hallucinations:** Associated with **Narcolepsy**.

Question 114: What are the biochemical abnormalities implicated in schizophrenia?

A. Increased dopamine
B. Increased dopamine and increased serotonin (Correct Answer)
C. Decreased dopamine
D. Decreased dopamine and decreased serotonin

Explanation: ### Explanation The biochemical basis of schizophrenia is primarily explained by the **Dopamine Hypothesis** and the **Serotonin Hypothesis**. **Why Option B is Correct:** 1. **Dopamine Hypothesis:** Schizophrenia is associated with **increased dopaminergic activity** in the mesolimbic pathway (responsible for positive symptoms like hallucinations and delusions). While there is a decrease in the mesocortical pathway (leading to negative symptoms), the overall classic teaching for exams emphasizes "increased dopamine." 2. **Serotonin Hypothesis:** Research and the efficacy of **Atypical Antipsychotics** (Second Generation Antipsychotics like Risperidone and Clozapine) highlight the role of **increased serotonin (5-HT)**. These drugs act as 5-HT2A receptor antagonists, proving that serotonin excess contributes to the pathogenesis, particularly modulating dopamine release. **Why Other Options are Incorrect:** * **Options C & D:** Decreased dopamine levels are generally associated with Parkinson’s disease or the side effects of antipsychotic medications (Extrapyramidal symptoms), not the primary pathology of schizophrenia. * **Option A:** While dopamine is the most famous neurotransmitter involved, focusing solely on dopamine ignores the significant role of serotonin, which is a key target in modern psychiatric management. **High-Yield Clinical Pearls for NEET-PG:** * **Glutamate Hypothesis:** Decreased NMDA receptor activity (hypofunction) is also implicated in schizophrenia. * **Pathways to Remember:** * **Mesolimbic:** ↑ Dopamine → Positive Symptoms. * **Mesocortical:** ↓ Dopamine → Negative Symptoms. * **Nigrostriatal:** Blockade here leads to EPS (Extrapyramidal Symptoms). * **Tuberoinfundibular:** Blockade here leads to Hyperprolactinemia. * **GABA:** There is often a decrease in GABAergic inhibitory neurotransmission in the prefrontal cortex of schizophrenic patients.

Question 115: A 40-year-old woman with a long-standing history of chronic depression states, "My belly and chest are empty. All my organs are gone. I don't exist. I'm dead." What type of delusion is this patient presenting with?

A. Paranoid delusions
B. Delusions of persecution
C. Nihilistic delusions (Correct Answer)
D. Delusions of reference

Explanation: ### Explanation **Correct Answer: C. Nihilistic delusions** **1. Why it is correct:** The patient is exhibiting **nihilistic delusions** (also known as **Cotard’s syndrome** or "walking corpse syndrome"). These are characterized by the false belief that one is dead, non-existent, or that their internal organs have rotted or disappeared. In this case, the patient’s statements ("organs are gone," "I don't exist," "I'm dead") are classic manifestations. These delusions are most commonly associated with **severe psychotic depression**, but can also occur in schizophrenia or organic brain syndromes. **2. Why the other options are incorrect:** * **A & B. Paranoid/Persecutory delusions:** These involve the belief that one is being followed, harassed, or conspired against by others. The patient’s focus here is on self-existence, not external threats. * **D. Delusions of reference:** This is the false belief that neutral external events (like a news report or a stranger’s conversation) have a special, personal meaning or message intended specifically for the patient. **3. High-Yield Clinical Pearls for NEET-PG:** * **Cotard’s Syndrome:** A specific triad of nihilistic delusions, melancholic depression, and self-harm/insensitivity to pain. * **Key Association:** While delusions are a hallmark of schizophrenia, nihilistic delusions are a **high-yield indicator of severe depressive psychosis** in exam questions. * **Schneider’s First Rank Symptoms (FRS):** Remember that nihilistic delusions are **not** part of Schneider’s FRS; they are mood-congruent psychotic features. * **Treatment:** Severe cases with nihilistic delusions often require **Electroconvulsive Therapy (ECT)** due to the high risk of self-neglect and refusal to eat.

Question 116: The characteristic symptom of organic psychosis is:

A. Hallucination (Correct Answer)
B. Depression
C. Transient delusion
D. Anxiety

Explanation: **Explanation:** Organic psychosis refers to psychotic symptoms (hallucinations or delusions) that are a direct physiological consequence of a general medical condition (e.g., epilepsy, endocrine disorders, or metabolic disturbances). **Why Hallucination is the correct answer:** Hallucinations, particularly **visual hallucinations**, are the hallmark and most characteristic feature of organic psychosis. While functional psychoses (like schizophrenia) typically present with auditory hallucinations, organic causes frequently manifest as vivid visual, tactile, or olfactory hallucinations. The presence of hallucinations in a clear or clouded sensorium (delirium) is a primary diagnostic indicator that the psychosis has an underlying biological or structural etiology. **Analysis of Incorrect Options:** * **B. Depression:** While depression can occur secondary to medical conditions (e.g., hypothyroidism), it is a mood disturbance rather than a defining feature of "psychosis." * **C. Transient Delusion:** Delusions do occur in organic states, but they are often fragmented and less systematized than those in schizophrenia. However, hallucinations remain more characteristic and diagnostically significant for an organic diagnosis. * **D. Anxiety:** Anxiety is a non-specific symptom found in almost all psychiatric and many medical disorders; it lacks the diagnostic specificity for organic psychosis. **NEET-PG High-Yield Pearls:** * **Visual Hallucinations = Think Organic:** Always rule out medical causes (e.g., delirium, alcohol withdrawal, or temporal lobe epilepsy) when a patient presents with visual hallucinations. * **Sensorium:** In organic psychosis (unlike schizophrenia), there is often an impairment of consciousness, orientation, or memory. * **Formication:** A specific tactile hallucination (feeling of insects crawling on skin) is a classic organic symptom seen in cocaine toxicity and alcohol withdrawal (Delirium Tremens).

Question 117: Which of the following is FALSE regarding schizophrenia?

A. Third person auditory hallucinations
B. Inappropriate emotions
C. Sustained mood changes (Correct Answer)
D. Formal thought disorder

Explanation: **Explanation:** Schizophrenia is primarily a **disorder of thought and perception**, whereas **sustained mood changes** (persistent elevation or depression) are the hallmark of **Mood Disorders** (like Bipolar Disorder or Major Depressive Disorder). While patients with schizophrenia may exhibit "blunted affect" or "inappropriate emotions," these are disturbances in the *expression* of emotion rather than a sustained pathological mood state. **Analysis of Options:** * **Sustained mood changes (Correct):** This is the false statement. If sustained mood symptoms are prominent, the diagnosis shifts toward Schizoaffective Disorder or a primary Mood Disorder with psychotic features. * **Third-person auditory hallucinations:** These are classic **Schneiderian First Rank Symptoms (FRS)**. Examples include hearing voices arguing about the patient or a running commentary on the patient's actions. * **Inappropriate emotions:** Also known as **incongruous affect**, this is a core feature where the patient’s emotional response does not match the context (e.g., laughing while describing a tragedy). * **Formal thought disorder:** This refers to a disorganized thinking process manifested through speech, such as loosening of associations, word salad, or neologisms. It is a diagnostic pillar of schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Schneider’s First Rank Symptoms (FRS):** Includes audible thoughts, third-person hallucinations, somatic passivity, and delusional perception. * **Bleuler’s 4 A’s:** Ambivalence, Autism (social withdrawal), Affective blunting, and Association looseness. * **Prognosis:** Good prognostic factors include late onset, female sex, presence of mood symptoms (ironically), and positive symptoms. Poor prognosis is linked to early onset, male sex, and negative symptoms.

Question 118: A patient complains that people living upstairs are always talking about him and conspire against him. His son complains about his weird behavior, such as keeping shoes in the fridge and wearing a vest over a shirt. What is the likely diagnosis?

A. Depression
B. Delusional disorder
C. Dementia
D. Schizophrenia (Correct Answer)

Explanation: ### Explanation The correct diagnosis is **Schizophrenia**. This clinical scenario highlights two hallmark features of the disorder: **Delusions** and **Disorganized Behavior**. 1. **Why Schizophrenia is correct:** * **Delusions of Persecution/Reference:** The patient believes neighbors are conspiring against him and talking about him. These are fixed, false beliefs characteristic of psychosis. * **Disorganized Behavior:** Keeping shoes in the fridge and wearing clothes in an inappropriate sequence (vest over shirt) are classic examples of disorganized behavior. According to ICD-11 and DSM-5, the presence of both delusions and significant behavioral disorganization points strongly toward Schizophrenia. 2. **Why other options are incorrect:** * **Depression:** While psychotic depression exists, the primary symptoms here are behavioral disorganization and paranoia without any mention of low mood, anhedonia, or suicidal ideation. * **Delusional Disorder:** This diagnosis requires non-bizarre delusions *without* prominent hallucinations or disorganized behavior. The "shoes in the fridge" behavior excludes this diagnosis. * **Dementia:** While behavioral disturbances occur in dementia, the primary deficit is cognitive decline (memory/executive function). The specific paranoid ideation and odd dressing patterns in a psychiatric context are more typical of a primary psychotic process. ### NEET-PG High-Yield Pearls * **Schneider’s First Rank Symptoms (FRS):** Though no longer mandatory for diagnosis in DSM-5, they remain high-yield. They include audible thoughts, voices arguing/commenting, and delusions of control. * **Negative Symptoms:** Remember the "5 A’s": Affective flattening, Alogia, Avolition, Anhedonia, and Asociality. * **Diagnosis Duration:** For Schizophrenia, symptoms must persist for at least **1 month** (ICD-11) or **6 months** (DSM-5). * **Disorganized Behavior:** This is a key "Positive Symptom" and often manifests as poor hygiene, inappropriate dress, or unpredictable agitation.

Question 119: Which of the following is NOT considered one of Bleuler's four cardinal symptoms of schizophrenia?

A. Loosening of associations
B. Disturbances of affect
C. Autism
D. Hallucinations (Correct Answer)

Explanation: **Explanation:** Eugen Bleuler, who coined the term "Schizophrenia" in 1911, categorized symptoms into **Fundamental (Primary)** and **Accessory (Secondary)** symptoms. The correct answer is **Hallucinations** because Bleuler classified them as accessory symptoms—features that are common in schizophrenia but not essential for the diagnosis. **Bleuler’s Four A’s (Fundamental Symptoms):** 1. **Loosening of Associations (Option A):** A thought disorder where ideas shift from one subject to another in a completely unrelated manner. 2. **Disturbances of Affect (Option B):** Characterized by inappropriate, blunted, or flattened emotional responses. 3. **Autism (Option C):** A detachment from reality where the patient retreats into a private inner world of fantasies and delusions. 4. **Ambivalence:** The simultaneous existence of contradictory feelings or impulses toward the same object or situation. **Why the other options are incorrect:** Options A, B, and C are the core components of the "Four A’s." Along with Ambivalence, these were considered by Bleuler to be the pathognomonic features present in every case of schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Accessory Symptoms:** Include Hallucinations and Delusions. While clinically striking, Bleuler believed they could occur in other organic brain syndromes. * **Schneider’s First Rank Symptoms (FRS):** Unlike Bleuler, Kurt Schneider emphasized hallucinations (e.g., third-person auditory) and delusions as primary diagnostic criteria. * **The 4 A's Mnemonic:** **A**ssociation, **A**ffect, **A**utism, **A**mbivalence. * **Evolution of Diagnosis:** Modern criteria (DSM-5/ICD-11) now prioritize the symptoms Bleuler called "accessory" (delusions/hallucinations) for diagnosis.

Question 120: What is akathisia?

A. An inner sense of restlessness and anxiety (Correct Answer)
B. A bucco-linguo-masticatory triad
C. Involuntary distal limb movements
D. An increased sensation of worthlessness and anxiety

Explanation: **Explanation:** **Akathisia** is the most common extrapyramidal side effect (EPS) associated with antipsychotic medications (especially first-generation antipsychotics). It is characterized by a subjective **inner sense of restlessness** and an objective need to move. Patients often describe it as "jumping out of their skin" or an inability to sit still. * **Why Option A is correct:** Akathisia is unique among movement disorders because it has both a **sensory component** (internal tension/anxiety) and a **motor component** (pacing, shifting weight, or foot tapping). The core diagnostic feature is this subjective distress. **Analysis of Incorrect Options:** * **Option B:** The **bucco-linguo-masticatory triad** (lip-smacking, tongue protrusion, and chewing motions) is the classic presentation of **Tardive Dyskinesia**, a late-onset EPS due to dopamine receptor supersensitivity. * **Option C:** Involuntary distal limb movements (like "pill-rolling" tremors) are characteristic of **Drug-Induced Parkinsonism**. Akathisia involves voluntary movements performed to relieve an involuntary sensation. * **Option D:** While anxiety is present, "worthlessness" is a cognitive symptom of depression, not a component of a motor side effect. **NEET-PG High-Yield Pearls:** 1. **Management:** The first-line treatment for akathisia is **Beta-blockers (Propranolol)**. Centrally acting anticholinergics or Benzodiazepines are second-line. 2. **Clinical Risk:** Akathisia is strongly associated with an increased risk of **suicidality** and treatment non-compliance due to the extreme distress it causes. 3. **Timeline:** It typically develops within days to weeks of starting or increasing the dose of an antipsychotic.

Practice by Chapter

Schizophrenia: Epidemiology and Etiology

Practice Questions

Schizophrenia: Clinical Features

Practice Questions

Schizophrenia: Treatment

Practice Questions

Schizoaffective Disorder

Practice Questions

Delusional Disorders

Practice Questions

Brief Psychotic Disorder

Practice Questions

Substance-Induced Psychotic Disorders

Practice Questions

Psychosis in Medical Conditions

Practice Questions

First Episode Psychosis

Practice Questions

Treatment-Resistant Psychosis

Practice Questions

Rehabilitation in Psychotic Disorders

Practice Questions

Outcome and Prognosis

Practice Questions

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