Child and Adolescent Psychiatry — MCQs

Child and Adolescent Psychiatry Indian Medical PG Practice Questions and MCQs

Question 31: A girl with normal developmental milestones spends her time looking at her own hands and does not interact with others. What is the diagnosis?

A. Attention Deficit Hyperactivity Disorder (ADHD)
B. Autism Spectrum Disorder (Correct Answer)
C. Asperger's Syndrome
D. Rett Syndrome

Explanation: **Explanation:** The clinical presentation of a child with **impaired social interaction** and **repetitive, stereotyped behaviors** (looking at her own hands) is a classic description of **Autism Spectrum Disorder (ASD)**. **1. Why Autism Spectrum Disorder is correct:** ASD is characterized by a triad of impairments: * **Social Communication & Interaction:** Lack of eye contact, failure to develop peer relationships, and lack of social/emotional reciprocity (not interacting with others). * **Restricted/Repetitive Behaviors:** Stereotyped motor movements (e.g., hand-flapping or staring at hands/fingers) and insistence on sameness. * **Developmental Timing:** Symptoms typically manifest in early childhood (usually before age 3). **2. Why other options are incorrect:** * **ADHD:** Characterized by a persistent pattern of inattention, hyperactivity, and impulsivity. It does not typically involve a lack of social interest or stereotyped hand movements. * **Asperger’s Syndrome:** Previously a separate diagnosis, it is now folded into ASD under DSM-5. However, children with Asperger’s typically have **no significant delay in language or cognitive development**, which is not specified here. * **Rett Syndrome:** Primarily affects girls but is characterized by a period of **normal development followed by regression** (loss of purposeful hand skills and head growth deceleration). The question states the girl has "normal developmental milestones," making ASD a more fitting diagnosis for the current behavior. **High-Yield Clinical Pearls for NEET-PG:** * **M-CHAT** is the most common screening tool used for ASD. * **Early signs:** Failure to respond to name by 12 months, lack of "joint attention" (pointing at objects), and poor eye contact. * **Prognosis:** The best predictors of long-term outcome in ASD are **IQ** and **communicative language development** by age 5.

Question 32: Which of the following statements about 'Imbecile' is true?

A. IQ is 50-60
B. Intellectual capacity is equivalent to a child of 3-7 years of age
C. Impaired self-care
D. Organic etiology can be identified (Correct Answer)

Explanation: ### Explanation The term **'Imbecile'** is an archaic classification for what is now clinically defined as **Moderate Intellectual Disability (ID)**. Understanding this historical nomenclature is crucial for NEET-PG, as older classifications often appear in forensic and historical psychiatry questions. #### Why Option D is Correct In cases of Moderate ID (Imbeciles), an **organic etiology** (such as chromosomal abnormalities like Down syndrome, metabolic disorders, or prenatal insults) can be identified in the majority of patients (up to 60-70%). This contrasts with Mild ID (Morons), where the cause is often familial or sociocultural rather than a specific identifiable organic lesion. #### Analysis of Incorrect Options * **A. IQ is 50-60:** This is incorrect. According to the traditional classification, an Imbecile has an **IQ of 35–49**. An IQ of 50–70 corresponds to a 'Moron' (Mild ID). * **B. Intellectual capacity is equivalent to a child of 3-7 years:** This is incorrect. The mental age of an Imbecile is typically **3 to 6 years**. While the range overlaps slightly, the standard definition for Moderate ID is 3-6 years, whereas 7-10 years corresponds to Mild ID. * **C. Impaired self-care:** While patients with Moderate ID require supervision, they can often be trained to manage basic self-care (activities of daily living) with moderate support. Severe impairment in self-care is more characteristic of 'Idiots' (Profound ID). #### High-Yield Clinical Pearls for NEET-PG | Old Term | Current Term | IQ Range | Mental Age | | :--- | :--- | :--- | :--- | | **Moron** | Mild ID | 50–70 | 7–10 years | | **Imbecile** | Moderate ID | 35–49 | 3–6 years | | **Idiot** | Severe/Profound | < 35 | < 3 years | * **Key Fact:** The most common cause of preventable intellectual disability is **Iodine deficiency**; the most common genetic cause is **Down Syndrome**; the most common inherited cause is **Fragile X Syndrome**.

Question 33: Which of the following is true about Autism Spectrum Disorder?

A. Persistent delusion
B. Persistent hallucination (Correct Answer)
C. Incoordinate social interaction
D. Defective reciprocal interaction

Explanation: **Explanation:** Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by persistent deficits in social communication and social interaction, alongside restricted, repetitive patterns of behavior, interests, or activities. **Why "Persistent Hallucination" is the correct answer (in the context of this question):** In the context of NEET-PG and classical psychiatric definitions, this question focuses on **exclusion criteria**. Hallucinations and delusions are hallmark symptoms of **Psychosis (e.g., Childhood-onset Schizophrenia)**, not ASD. Therefore, the presence of persistent hallucinations is *not* a feature of Autism; rather, its absence is often used to differentiate ASD from psychotic disorders. (Note: In some MCQ formats, "True about ASD" questions are framed to identify the *exception* or the *distinguishing feature* from other childhood disorders). **Analysis of Incorrect Options:** * **C & D (Incoordinate social interaction / Defective reciprocal interaction):** These are core diagnostic features of ASD. According to DSM-5, patients must show deficits in **social-emotional reciprocity** (e.g., failure of normal back-and-forth conversation) and social communication. These are "true" clinical features, making them incorrect choices if the question seeks the "odd one out" or a non-feature. * **A (Persistent Delusion):** Like hallucinations, delusions are features of psychosis and are not part of the diagnostic criteria for ASD. **High-Yield Clinical Pearls for NEET-PG:** * **M-CHAT:** Most commonly used screening tool for toddlers (16–30 months). * **Core Triad (Wing’s Triad):** 1. Impairment in social communication, 2. Impairment in social interaction, 3. Restricted/Repetitive interests. * **Prognosis:** The best predictors of long-term outcome are **Language development** (by age 5) and **IQ**. * **Associated Sign:** "Hand flapping" and "Gaze avoidance" are classic bedside observations. * **Pharmacotherapy:** Risperidone and Aripiprazole are FDA-approved for irritability and aggression in ASD.

Question 34: What is the IQ level typically observed in individuals with profound mental retardation?

A. Below 20-25 (Correct Answer)
B. 25-40
C. 40-55
D. 55-70

Explanation: **Explanation:** The classification of Intellectual Disability (ID), formerly known as Mental Retardation, is based on the Intelligence Quotient (IQ) score. According to the ICD-10 and DSM-IV classifications, **Profound Mental Retardation** is defined by an **IQ level below 20 or 25**. Individuals in this category require constant supervision and 24-hour care, as they possess minimal sensorimotor functioning and very limited communication skills. **Analysis of Options:** * **Option A (Below 20-25): Correct.** This range represents the "Profound" category. These individuals often have associated neurological conditions and a mental age of less than 3 years. * **Option B (25-40): Incorrect.** This range corresponds to **Severe Mental Retardation**. These individuals can be trained in basic self-care (e.g., toileting) but usually require a highly supervised living environment. * **Option C (40-55): Incorrect.** This range corresponds to **Moderate Mental Retardation**. These individuals are considered "trainable"; they can acquire communication skills and perform semi-skilled work under supervision. * **Option D (55-70): Incorrect.** This range corresponds to **Mild Mental Retardation**. This is the most common type (approx. 85%). These individuals are "educable" and can achieve social and vocational adequacy with some support. **High-Yield NEET-PG Pearls:** * **Most Common Type:** Mild Mental Retardation (IQ 50-70). * **Educable:** Mild ID; **Trainable:** Moderate ID. * **Assessment Tools:** Binet-Kamat Test and Vineland Social Maturity Scale (VSMS) are frequently used in India. * **DSM-5 Update:** Note that DSM-5 now emphasizes **adaptive functioning** (conceptual, social, and practical domains) rather than just IQ scores to determine the severity of Intellectual Disability.

Question 35: Operant conditioning where a painful stimulus is given to a child for decreasing a certain undesired behavior can be classified as:

A. Positive Reinforcement
B. Negative Reinforcement
C. Punishment (Correct Answer)
D. Negotiation

Explanation: **Explanation:** This question tests the fundamental principles of **Operant Conditioning**, a theory developed by B.F. Skinner which posits that behavior is shaped by its consequences. **1. Why Punishment is Correct:** In behavioral psychology, **Punishment** is defined as any consequence that **decreases** the likelihood of a behavior recurring. * **Positive Punishment:** Adding an aversive/painful stimulus (e.g., a slap or a loud noise) to decrease a behavior. * **Negative Punishment:** Removing a pleasant stimulus (e.g., taking away a toy) to decrease a behavior. Since the question describes giving a painful stimulus to decrease an undesired behavior, it is a classic example of Positive Punishment. **2. Why Incorrect Options are Wrong:** * **Positive Reinforcement (A):** Involves **adding** a rewarding stimulus to **increase** a desired behavior (e.g., giving a chocolate for finishing homework). * **Negative Reinforcement (B):** Involves **removing** an aversive stimulus to **increase** a desired behavior (e.g., a child cleans their room to stop their mother’s nagging). *Note: Students often confuse this with punishment; remember that reinforcement always aims to increase behavior.* * **Negotiation (D):** This is a social/communication strategy, not a formal term within the framework of Operant Conditioning. **Clinical Pearls for NEET-PG:** * **Reinforcement** = Behavior Increases; **Punishment** = Behavior Decreases. * **Positive** = Stimulus is Added; **Negative** = Stimulus is Removed. * **Extinction:** The gradual weakening and disappearance of a conditioned response when it is no longer reinforced (e.g., ignoring a child's temper tantrum). * **Token Economy:** A therapeutic technique based on positive reinforcement where "tokens" (secondary reinforcers) are given for desirable behavior and can be exchanged for rewards.

Question 36: Which of the following statements is false regarding childhood autism?

A. An isolated area of talent may be remarkably developed.
B. Parental attitude and behavior do not contribute to it.
C. Emergence of speech and social smile is often delayed.
D. It represents a type of childhood neurotic disorder. (Correct Answer)

Explanation: **Explanation:** The correct answer is **D**. Childhood Autism (Autism Spectrum Disorder) is classified as a **Neurodevelopmental Disorder**, not a neurotic disorder. Neurotic disorders (like anxiety or OCD) typically involve intact reality testing and are often reactions to stress, whereas neurodevelopmental disorders are characterized by impairments in the growth and development of the brain or central nervous system. **Analysis of Options:** * **Option A (True):** Many children with autism exhibit **"Savant Syndrome,"** where they possess isolated, remarkable talents in specific areas such as mental calculation, music, or memory, despite overall cognitive impairments. * **Option B (True):** Modern psychiatry has debunked the "Refrigerator Mother" theory. It is now well-established that autism is a **biological/genetic condition**; parental upbringing, attitude, or lack of warmth do not cause the disorder. * **Option C (True):** Impairment in communication and social interaction are core features. A **delayed social smile** (normally appearing at 2 months) and delayed or absent speech are classic early warning signs. **Clinical Pearls for NEET-PG:** * **Core Triad:** 1. Impaired social interaction, 2. Impaired communication, 3. Restricted, repetitive patterns of behavior/interests. * **Age of Onset:** Symptoms must be present in the **early developmental period** (typically recognized before age 3). * **M-CHAT:** The most commonly used screening tool for toddlers. * **Pharmacotherapy:** While behavioral therapy (ABA) is mainstay, **Risperidone and Aripiprazole** are FDA-approved for irritability and aggression in autism.

Question 37: Conduct disorder in a child manifests with all of the following except:

A. Disregard for the rights of others
B. Lack of concern for authority
C. Backwardness in studies
D. Decreased head circumference (Correct Answer)

Explanation: **Explanation:** **Conduct Disorder (CD)** is a behavioral and emotional disorder of childhood and adolescence characterized by a repetitive and persistent pattern of behavior in which the basic rights of others or major age-appropriate societal norms or rules are violated. **Why Option D is correct:** **Decreased head circumference (Microcephaly)** is a physical/structural finding. Conduct disorder is a behavioral diagnosis based on clinical history and observation. There is no established pathophysiological link between head circumference and the development of Conduct Disorder. Microcephaly is more commonly associated with neurodevelopmental conditions like Intellectual Disability or Fetal Alcohol Syndrome, but not specifically with the antisocial behaviors of CD. **Analysis of Incorrect Options:** * **A & B (Disregard for rights and lack of concern for authority):** These are the core diagnostic criteria for CD. Behaviors include aggression toward people/animals, destruction of property, deceitfulness, theft, and serious violations of rules (truancy, running away). * **C (Backwardness in studies):** While not a primary diagnostic criterion, academic underachievement is a very common **associated feature**. Children with CD often have comorbid ADHD or Learning Disorders, and their behavioral issues frequently lead to school suspensions and poor academic performance. **NEET-PG High-Yield Pearls:** * **Diagnosis:** Symptoms must be present for at least **12 months**, with at least one criterion present in the last 6 months. * **Progression:** If these behaviors persist into adulthood (age >18), the diagnosis changes to **Antisocial Personality Disorder**. * **Callous-Unemotional Traits:** A specifier in DSM-5 indicating a lack of remorse or empathy, often predicting a more severe prognosis. * **Treatment:** Multi-modal approach involving Parent Management Training (PMT) and Multisystemic Therapy (MST). Pharmacotherapy is only used for comorbidities (e.g., stimulants for ADHD).

Question 38: Which is the most common genetic cause of mental retardation?

A. Tuberous sclerosis
B. Fragile X syndrome (Correct Answer)
C. Cri-du-chat syndrome
D. Angelman syndrome

Explanation: **Explanation:** The correct answer is **Fragile X syndrome**. In medical genetics and psychiatry, it is crucial to distinguish between the most common *genetic* cause and the most common *chromosomal* cause of intellectual disability (ID). 1. **Fragile X Syndrome (Correct):** It is the **most common inherited (genetic) cause** of mental retardation. It is caused by an expansion of the CGG trinucleotide repeat in the *FMR1* gene on the X chromosome. Clinically, it presents with a long face, large prominent ears, and macro-orchidism (post-pubertal). 2. **Tuberous Sclerosis:** This is a neurocutaneous syndrome (phakomatosis) characterized by seizures, facial angiofibromas, and "ash-leaf" spots. While it is associated with ID, it is significantly less common than Fragile X. 3. **Cri-du-chat Syndrome:** Caused by a deletion of the short arm of chromosome 5 (5p-). It presents with a characteristic cat-like cry and severe ID, but it is a rare chromosomal deletion. 4. **Angelman Syndrome:** Caused by the loss of the maternal copy of chromosome 15q11-q13 (genomic imprinting). Known as "Happy Puppet" syndrome, it features frequent laughter and ataxia, but is not the most common cause. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of ID (Overall):** Down Syndrome (Trisomy 21). Note: Down Syndrome is the most common *chromosomal* cause, but most cases are sporadic (nondisjunction), not inherited. * **Most common inherited/genetic cause of ID:** Fragile X Syndrome. * **Most common preventable cause of ID:** Fetal Alcohol Syndrome. * **Fragile X Genetics:** Shows "Anticipation" (severity increases in successive generations) and is diagnosed via PCR or Southern Blot.

Question 39: A child exhibits aggressive behavior towards other children. Subsequently, the child is placed in a separate room and is not allowed to watch their usual television channel. What behavioral principle is being applied in this scenario?

A. Punishment
B. Omission training (Correct Answer)
C. Negative reinforcement
D. Positive reinforcement

Explanation: This scenario describes the application of **Omission Training**, also known as **Negative Punishment**. ### 1. Why Omission Training is Correct In behavioral psychology, **Omission Training** involves the **removal of a pleasant stimulus** (reinforcer) following an undesirable behavior, with the goal of decreasing the frequency of that behavior. * **The Action:** The child is removed from a social setting (Time-out) and denied access to a favorite TV channel. * **The Goal:** To reduce aggressive behavior by "omitting" the reward the child usually enjoys. ### 2. Analysis of Incorrect Options * **Punishment (Positive Punishment):** This involves **adding** an aversive stimulus (e.g., scolding or a physical task) to decrease behavior. In this question, something is being taken away, not added. * **Negative Reinforcement:** This is often confused with punishment. It involves **removing an unpleasant stimulus** to **increase** a desired behavior (e.g., a child cleans their room to stop their parent's nagging). It aims to strengthen behavior, whereas the scenario aims to weaken aggression. * **Positive Reinforcement:** This involves **adding a pleasant stimulus** to **increase** a desired behavior (e.g., giving a chocolate for finishing homework). ### 3. NEET-PG Clinical Pearls * **Operant Conditioning (Skinner):** The basis of these principles. Remember: **Reinforcement** always aims to *increase* behavior; **Punishment** always aims to *decrease* behavior. * **Time-out:** A classic clinical example of Omission Training used in ADHD and Conduct Disorder. * **Extinction:** A related concept where a behavior decreases because the reinforcement that previously maintained it is discontinued (e.g., ignoring a child's temper tantrum).

Question 40: Which antidepressant is commonly used for depressive symptoms in children?

A. Clomipramine
B. Fluoxetine (Correct Answer)
C. Amitriptyline
D. Escitalopram

Explanation: **Explanation:** **Fluoxetine** is the correct answer because it is the only antidepressant with robust clinical evidence and FDA approval for the treatment of Major Depressive Disorder (MDD) in children and adolescents (ages 8 and older). 1. **Why Fluoxetine is Correct:** In pediatric populations, Selective Serotonin Reuptake Inhibitors (SSRIs) are the first-line pharmacological treatment. Fluoxetine has a long half-life, which minimizes withdrawal symptoms if a dose is missed, and it has demonstrated the best efficacy-to-safety ratio in landmark trials like the TADS (Treatment for Adolescents with Depression Study). 2. **Why Other Options are Incorrect:** * **Clomipramine & Amitriptyline:** These are Tricyclic Antidepressants (TCAs). TCAs are generally **not effective** for depression in pre-pubertal children and carry a high risk of cardiotoxicity (arrhythmias due to QTc prolongation) and anticholinergic side effects. Clomipramine is primarily used in children for OCD, not depression. * **Escitalopram:** While approved for MDD in adolescents (ages 12–17), it is not the first-line choice for younger children compared to Fluoxetine. **High-Yield Clinical Pearls for NEET-PG:** * **Black Box Warning:** All antidepressants carry a boxed warning regarding the increased risk of **suicidal ideation** and behavior in children, adolescents, and young adults (up to age 24). * **First-line for Pediatric OCD:** Sertraline, Fluoxetine, and Fluvoxamine are commonly used. * **First-line for Enuresis:** While TCAs (Imipramine) can be used, the first-line treatment is behavioral (enuresis alarms) or Desmopressin. * **Combination Therapy:** For adolescent depression, the combination of **Fluoxetine + CBT** (Cognitive Behavioral Therapy) is superior to either treatment alone.

Practice by Chapter

Normal Child Development

Practice Questions

Intellectual Developmental Disorder

Practice Questions

Autism Spectrum Disorders

Practice Questions

Attention-Deficit/Hyperactivity Disorder

Practice Questions

Conduct Disorder

Practice Questions

Oppositional Defiant Disorder

Practice Questions

Anxiety Disorders in Children

Practice Questions

Depression in Children and Adolescents

Practice Questions

Psychosis in Children and Adolescents

Practice Questions

Learning Disorders

Practice Questions

Child Abuse and Neglect

Practice Questions

Family Therapy Approaches

Practice Questions

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