Child and Adolescent Psychiatry — MCQs

Child and Adolescent Psychiatry Indian Medical PG Practice Questions and MCQs

Question 41: Mild MR features are:

A. Present in 5-10% of the population
B. Incidence in low socioeconomic groups (Correct Answer)
C. Presents by 2 years of age
D. Genetic background is present

Explanation: ### Explanation **Correct Option: B. Incidence in low socioeconomic groups** Mild Intellectual Disability (ID), formerly known as Mild Mental Retardation (MR), is strongly associated with **environmental and psychosocial factors**. Unlike severe forms of ID, which are often linked to specific genetic or biological insults, Mild ID is frequently "sociocultural" in origin. It is more prevalent in lower socioeconomic groups due to factors such as poor maternal nutrition, lack of environmental stimulation, inadequate prenatal care, and exposure to environmental toxins (like lead). **Analysis of Incorrect Options:** * **A. Present in 5-10% of the population:** This is incorrect. While Mild ID accounts for approximately **85% of all cases of intellectual disability**, the overall prevalence of ID in the general population is only about **1-3%**. * **C. Presents by 2 years of age:** Mild ID (IQ 50-70) is typically **not identified until the early school years** (ages 6-10). Children with Mild ID often have normal physical appearances and achieve early motor milestones on time; their deficits in abstract thinking and academic skills only become apparent when they enter a formal educational environment. * **D. Genetic background is present:** While genetics can play a role, Mild ID is more commonly associated with **polygenic inheritance and environmental deprivation**. In contrast, Severe and Profound ID are much more likely to have a single identifiable genetic cause (e.g., Down Syndrome, Fragile X). **High-Yield Clinical Pearls for NEET-PG:** * **IQ Range:** Mild ID corresponds to an IQ of **50–70**. * **Educability:** Individuals with Mild ID are considered **"Educable."** They can usually achieve academic skills up to a **6th-grade level** and can live independently with minimal support. * **Classification:** Under DSM-5, the severity of ID is now determined by **adaptive functioning** rather than IQ scores alone. * **Most Common Cause:** The most common inherited cause of ID is **Fragile X Syndrome**, while the most common preventable/environmental cause is **Fetal Alcohol Syndrome**.

Question 42: The term 'mental retardation' has been officially replaced by which of the following terms?

A. Mental deficiency
B. Mental lack
C. Mentally challenged
D. Intellectual disability (Correct Answer)

Explanation: **Explanation:** The term **Intellectual Disability (ID)** is the current official clinical and legal term used to describe significant limitations in both intellectual functioning and adaptive behavior. This shift occurred to reduce the stigma associated with the word "retardation" and to align with modern clinical classifications. * **DSM-5 (APA):** Replaced 'Mental Retardation' with **Intellectual Disability (Intellectual Developmental Disorder)**. * **ICD-11 (WHO):** Uses the term **Disorders of Intellectual Development**. * **Rosa’s Law (2010):** A landmark US law that mandated the replacement of "mental retardation" with "intellectual disability" in federal statutes, influencing global medical terminology. **Analysis of Incorrect Options:** * **A & B (Mental deficiency/lack):** These are archaic terms used in the early 20th century. They are considered medically obsolete and do not encompass the modern understanding of adaptive functioning. * **C (Mentally challenged):** While often used in social or colloquial contexts to be polite, it is not a formal clinical diagnosis recognized by the DSM or ICD. **High-Yield Clinical Pearls for NEET-PG:** * **Criteria for ID:** 1. Deficits in intellectual functions (IQ < 70); 2. Deficits in adaptive functioning (failure to meet developmental/sociocultural standards for independence); 3. Onset during the **developmental period** (before age 18). * **Severity Levels:** In DSM-5, severity (Mild, Moderate, Severe, Profound) is determined by **adaptive functioning** rather than IQ scores alone. * **Most Common Cause:** Genetic (Down Syndrome is the most common chromosomal cause; Fragile X is the most common inherited cause). * **Most Common Level:** Mild ID (approx. 85% of cases).

Question 43: A sign of oppositionalism in a young child is most commonly associated with which of the following?

A. Mental retardation
B. Organic mental disorder
C. Mental distress (Correct Answer)
D. All of the above

Explanation: **Explanation:** In child psychiatry, **oppositionalism** (defiance, stubbornness, or refusal to comply) is most commonly viewed as a behavioral manifestation of underlying **mental distress**. In young children who lack the verbal sophistication to articulate complex emotions, psychological conflict or environmental stressors often present as "acting out" or oppositional behavior. This is frequently a reactive mechanism to anxiety, depression, or an unstable home environment rather than a primary neurological deficit. **Analysis of Options:** * **Mental Distress (Correct):** Oppositional Defiant Disorder (ODD) and general oppositional traits are strongly linked to emotional dysregulation. The child uses defiance as a coping mechanism for internal distress or to exert control when feeling overwhelmed. * **Mental Retardation (Intellectual Disability):** While children with ID may show behavioral issues due to frustration or communication barriers, oppositionalism is not a core diagnostic feature or a "most common" association. * **Organic Mental Disorder:** These are behavioral changes due to identifiable brain disease or injury (e.g., tumors, epilepsy). While personality changes can occur, they are rare causes of oppositionalism compared to the high prevalence of emotional/psychological distress. **High-Yield Clinical Pearls for NEET-PG:** * **Oppositional Defiant Disorder (ODD):** Characterized by a pattern of angry/irritable mood and vindictiveness lasting at least **6 months**. * **Differential Diagnosis:** Always rule out **ADHD** and **Conduct Disorder**. ODD does *not* typically involve the violation of the basic rights of others or major age-appropriate societal norms (which is the hallmark of Conduct Disorder). * **Treatment:** The primary management for oppositionalism in children is **Parent Management Training (PMT)** and family therapy, rather than pharmacotherapy.

Question 44: What is the new terminology for Down syndrome?

A. Trisomy 21 (Correct Answer)
B. Oligophrenia
C. Intellectual disability
D. Autism spectrum disorder

Explanation: **Explanation:** **Down syndrome** is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. While "Down syndrome" remains the common clinical name, **Trisomy 21** is the precise cytogenetic terminology used to describe the underlying chromosomal abnormality (nondisjunction during meiosis). In modern medical literature and examinations, there is a shift toward using genetic descriptors to ensure diagnostic accuracy. **Analysis of Options:** * **Trisomy 21 (Correct):** This is the definitive genetic term. Approximately 95% of cases are due to complete trisomy 21, while the remainder result from Robertsonian translocation or mosaicism. * **Oligophrenia (Incorrect):** This is an archaic, obsolete term formerly used to describe mental deficiency or "feeble-mindedness." It is no longer used in modern psychiatry (DSM-5 or ICD-11). * **Intellectual Disability (Incorrect):** This is the current DSM-5 term replacing "Mental Retardation." While most individuals with Down syndrome have intellectual disability, this is a *symptom* or a functional diagnosis, not a synonym for the specific syndrome itself. * **Autism Spectrum Disorder (Incorrect):** This is a neurodevelopmental disorder characterized by deficits in social communication and repetitive behaviors. While it can be comorbid with Down syndrome, it is a distinct clinical entity. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause:** Meiotic non-disjunction (associated with advanced maternal age). * **Screening:** First-trimester screening includes Ultrasound (increased Nuchal Translucency) and biochemical markers (low PAPP-A, high β-hCG). * **Quadruple Test (Second Trimester):** Low AFP, low Estriol, high hCG, and high Inhibin-A. * **Psychiatric Comorbidity:** Increased risk of early-onset Alzheimer’s disease (due to the APP gene on chromosome 21) and ADHD.

Question 45: Which of the following conditions is seen exclusively in females?

A. Rett syndrome (Correct Answer)
B. Asperger's syndrome
C. Early onset schizophrenia
D. Autism

Explanation: **Explanation:** **Rett Syndrome (Correct Answer):** Rett syndrome is a neurodevelopmental disorder caused by a mutation in the **MECP2 gene** located on the **X chromosome**. It is seen almost exclusively in females because the mutation is typically **lethal in hemizygous males** (who possess only one X chromosome), leading to miscarriage or early neonatal death. Affected girls appear to develop normally for the first 6–18 months, followed by a characteristic regression of language and motor skills, the development of **stereotypical hand-wringing movements**, and microcephaly. **Incorrect Options:** * **Asperger’s Syndrome & Autism:** Both are part of the Autism Spectrum Disorders (ASD). These conditions are significantly **more common in males** (ratio approx. 4:1). While they occur in females, they are by no means exclusive to them. * **Early Onset Schizophrenia:** This refers to schizophrenia diagnosed before age 13. It is rare and actually shows a **male preponderance** in childhood, with a more severe clinical course often seen in boys. **High-Yield Clinical Pearls for NEET-PG:** * **The "Hand-Wringing" Sign:** This is the classic board-exam descriptor for Rett Syndrome (loss of purposeful hand use replaced by repetitive wringing/clapping). * **MECP2 Gene:** Always associate this gene with Rett Syndrome. * **Stages of Rett:** Remember the "Regression" phase—a child who was meeting milestones but suddenly stops and loses acquired skills. * **ICD-11/DSM-5 Update:** Asperger’s is no longer a standalone diagnosis; it is now subsumed under **Autism Spectrum Disorder (ASD)**.

Question 46: A 10-year-old child presents with persistent restlessness, inattention to studies, and a strong desire to play outdoors. The parents are significantly distressed by these behaviors. What is the most probable diagnosis?

A. Autism
B. Specific learning disability
C. ADHD (Correct Answer)
D. Dyslexia

Explanation: ### **Explanation** The clinical presentation of persistent **restlessness** (hyperactivity), **inattention** to studies, and a preference for physical activity over sedentary tasks in a 10-year-old child is a classic description of **Attention-Deficit Hyperactivity Disorder (ADHD)**. **1. Why ADHD is correct:** ADHD is characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development. According to DSM-5, symptoms must be present before age 12 and occur in two or more settings (e.g., home and school). The "desire to play outdoors" reflects the motor restlessness and difficulty engaging in quiet, cognitively demanding tasks like studying. **2. Why other options are incorrect:** * **Autism (ASD):** Primarily involves deficits in social communication, social interaction, and the presence of restricted, repetitive patterns of behavior or interests. It does not primarily present as simple restlessness. * **Specific Learning Disorder (SLD):** This is characterized by difficulties in learning and using academic skills (reading, writing, or math) despite normal intelligence. While it often co-occurs with ADHD, SLD alone does not explain generalized restlessness or hyperactivity. * **Dyslexia:** A specific type of SLD focused on reading difficulties (word recognition, decoding, and spelling). It does not account for the behavioral restlessness described. **Clinical Pearls for NEET-PG:** * **M/C Comorbidity:** Oppositional Defiant Disorder (ODD). * **Drug of Choice (DOC):** Methylphenidate (a CNS stimulant that blocks dopamine and norepinephrine reuptake). * **Non-stimulant DOC:** Atomoxetine (useful if there is a history of tics or substance abuse). * **Neurobiology:** Associated with dysfunction in the **prefrontal cortex** and imbalances in **Dopamine** and **Norepinephrine**.

Question 47: Encopresis is associated with which of the following?

A. Low socioeconomic class
B. Child less than 4 years old
C. Female sex
D. Severe emotional disturbances (Correct Answer)

Explanation: **Explanation:** **Encopresis** is defined as the repeated passage of feces into inappropriate places (involuntary or intentional) in a child at least **4 years of age**, occurring at least once a month for at least 3 months, and not due to a substance or medical condition. **Why the Correct Answer is Right:** **Severe emotional disturbances** are frequently associated with non-retentive encopresis. While the most common cause of encopresis is chronic constipation (overflow incontinence), cases without constipation are often linked to psychological stressors, such as a chaotic home environment, physical or sexual abuse, or oppositional defiant disorder. In these instances, the act may be a manifestation of emotional distress or a "cry for help." **Why Incorrect Options are Wrong:** * **A. Low socioeconomic class:** Unlike Enuresis (bedwetting), which shows a higher prevalence in lower socioeconomic groups, Encopresis does not have a strong or consistent correlation with socioeconomic status. * **B. Child less than 4 years old:** By definition (DSM-5/ICD-11), a child must have a chronological or developmental age of at least **4 years** to be diagnosed with encopresis, as bowel control is typically expected by this age. * **C. Female sex:** Encopresis is significantly more common in **males** (estimated ratio of 3:1 to 4:1). **High-Yield Clinical Pearls for NEET-PG:** * **Primary Encopresis:** The child has never achieved fecal continence. * **Secondary Encopresis:** Fecal incontinence develops after a period of at least one year of continence. * **Most Common Cause:** Functional constipation (Retentive Encopresis) accounts for ~80% of cases. * **Management:** Initial steps involve "disimpaction" followed by maintenance with stool softeners and behavioral toilet training. Psychological intervention is indicated if emotional disturbances are present.

Question 48: Who proposed the theory of psychosexual development?

A. Freud (Correct Answer)
B. Piaget
C. Skinner
D. Kaplan

Explanation: **Explanation:** The theory of **Psychosexual Development** was proposed by **Sigmund Freud**, the father of psychoanalysis. Freud posited that personality develops through a series of childhood stages in which the pleasure-seeking energies of the *Id* (libido) become focused on specific erogenous zones. According to Freud, successful completion of these stages (Oral, Anal, Phallic, Latency, and Genital) results in a healthy personality, while failure to resolve conflicts at a specific stage leads to **fixation**. **Analysis of Incorrect Options:** * **B. Piaget:** Jean Piaget is renowned for the **Theory of Cognitive Development**, which describes how children construct a mental model of the world through four stages (Sensorimotor, Preoperational, Concrete Operational, and Formal Operational). * **C. Skinner:** B.F. Skinner was a leading behaviorist who proposed the theory of **Operant Conditioning**, focusing on how reinforcement and punishment influence behavior. * **D. Kaplan:** Harold Kaplan (along with Benjamin Sadock) is famous for authoring the definitive textbook of psychiatry (*Kaplan & Sadock's Comprehensive Textbook of Psychiatry*), but he did not propose the psychosexual stages. **High-Yield Clinical Pearls for NEET-PG:** * **Freud’s Stages:** Oral (0-1 yr), Anal (1-3 yrs), Phallic (3-6 yrs), Latency (6-puberty), Genital (puberty onwards). * **Phallic Stage:** This is the most high-yield stage for exams, involving the **Oedipus complex** (boys) and **Electra complex** (girls). * **Defense Mechanisms:** Freud’s daughter, Anna Freud, further expanded on defense mechanisms, which are frequently tested (e.g., Projection, Reaction Formation, Sublimation). * **Erik Erikson:** Often confused with Freud, Erikson proposed **Psychosocial Development** (8 stages), focusing on social interaction rather than sexual energy.

Question 49: What is the IQ range considered for a 'moron' classification?

A. 0-24
B. 25-49
C. 50-69 (Correct Answer)
D. 70-79

Explanation: This question refers to the historical classification of Intellectual Disability (ID), previously known as Mental Retardation. While modern psychiatry (ICD-11 and DSM-5) uses the terms Mild, Moderate, Severe, and Profound, the older terminology—Idiot, Imbecile, and Moron—is still occasionally tested in competitive exams. ### **Explanation of the Correct Answer** **Option C (50-69)** is the correct range for a **'Moron'**. In the historical classification, this corresponds to **Mild Intellectual Disability**. Individuals in this range are considered "educable"; they can acquire academic skills up to a 6th-grade level and can often live independently with minimal support. ### **Analysis of Incorrect Options** * **Option A (0-24):** This range corresponds to **'Idiot'** (Profound ID). These individuals have minimal sensorimotor functioning and require constant supervision. * **Option B (25-49):** This range corresponds to **'Imbecile'** (Moderate to Severe ID). Specifically, 25-34 is Severe, and 35-49 is Moderate. These individuals are considered "trainable" in self-care but usually cannot achieve academic independence. * **Option D (70-79):** This range is classified as **'Borderline Intelligence'**. It is not considered a category of Intellectual Disability but rather a transition zone between ID and average intelligence. ### **NEET-PG Clinical Pearls** * **IQ Calculation:** $IQ = \frac{\text{Mental Age (MA)}}{\text{Chronological Age (CA)}} \times 100$. * **Most Common Type:** Mild ID (50-69) accounts for approximately **85%** of all cases of intellectual disability. * **Social Maturity:** The **Vineland Social Maturity Scale (VSMS)** is frequently used alongside IQ tests to assess adaptive functioning in children. * **Genetic Link:** Down Syndrome is the most common genetic cause of ID, while Fragile X Syndrome is the most common *inherited* cause.

Question 50: By which method can activities of daily living be taught to a mentally retarded child?

A. Self instruction
B. Cognitive therapy
C. Contingency management (Correct Answer)
D. Cognitive remediation

Explanation: **Explanation:** The management of Intellectual Disability (Mental Retardation) focuses on functional independence. Teaching Activities of Daily Living (ADLs)—such as brushing teeth, dressing, or eating—requires behavioral modification techniques rather than complex cognitive interventions. **Why Contingency Management is correct:** Contingency management is a type of **Operant Conditioning** where behavior is modified by its consequences. In children with intellectual disabilities, this involves **Positive Reinforcement** (providing rewards like praise, tokens, or treats) immediately after a desired behavior is performed. This strengthens the association between the task and the reward, making the child more likely to repeat the ADL. It often utilizes **Chaining** (breaking a task into small steps) and **Shaping** (rewarding closer approximations of the task). **Analysis of Incorrect Options:** * **Self-instruction:** This involves internal verbal mediation (talking oneself through a task). It requires a level of abstract reasoning and executive function that children with significant intellectual disabilities often lack. * **Cognitive Therapy:** This focuses on identifying and changing maladaptive thought patterns and cognitive distortions. It is ineffective for teaching basic motor skills or ADLs in this population. * **Cognitive Remediation:** This is used primarily in Schizophrenia or ADHD to improve underlying cognitive processes like attention and working memory. It is not the primary modality for teaching functional life skills. **Clinical Pearls for NEET-PG:** * **IQ Thresholds:** Mild (50-70), Moderate (35-49), Severe (20-34), Profound (<20). * **Educability:** Mild ID is considered "Educable," while Moderate ID is "Trainable" (best suited for ADL training via contingency management). * **Behavioral Therapy:** It is the cornerstone of management for ID, focusing on reinforcement, modeling, and social skills training.

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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