Child and Adolescent Psychiatry — MCQs

Child and Adolescent Psychiatry Indian Medical PG Practice Questions and MCQs

Question 111: When behavioral therapy fails in the management of enuresis, what is the pharmacological drug of choice?

A. Phenytoin
B. Diazepam
C. Imipramine (Correct Answer)
D. Alprazolam

Explanation: **Explanation:** **Enuresis** (bedwetting) is defined as involuntary voiding of urine into bed or clothes in children aged 5 years or older. While **behavioral therapy** (specifically the Enuresis Alarm) is the first-line treatment with the highest long-term success rate, pharmacological intervention is indicated when behavioral methods fail or when rapid short-term improvement is needed. **Why Imipramine is the Correct Answer:** **Imipramine**, a Tricyclic Antidepressant (TCA), is the pharmacological drug of choice when behavioral therapy fails. Its efficacy in enuresis is attributed to a triple mechanism of action: 1. **Anticholinergic effect:** It increases bladder capacity by relaxing the detrusor muscle. 2. **Alpha-adrenergic stimulation:** It increases internal sphincter tone. 3. **Alteration of sleep-arousal patterns:** It lightens the depth of sleep, allowing the child to wake up when the bladder is full. **Analysis of Incorrect Options:** * **A. Phenytoin:** An antiepileptic drug used for seizures; it has no role in bladder control or enuresis management. * **B. Diazepam & D. Alprazolam:** These are Benzodiazepines. While they are used for anxiety or sleep disorders, they can actually worsen enuresis by deepening sleep and causing muscle relaxation, making it harder for the child to wake up to void. **High-Yield Clinical Pearls for NEET-PG:** * **First-line non-pharmacological treatment:** Enuresis Alarm (Bell and Pad). * **Alternative Drug:** **Desmopressin (DDAVP)**, an ADH analogue, is also frequently used (especially for sleepovers) as it reduces urine production at night. * **Safety Warning:** Imipramine has a narrow therapeutic index; overdose can lead to fatal cardiac arrhythmias (QT prolongation). * **Relapse Rate:** Pharmacological treatments have a higher relapse rate compared to behavioral therapy once the drug is discontinued.

Question 112: Which of the following is NOT an associated co-morbid condition in children with hyperkinetic attention deficit disorder?

A. Elimination disorder (Correct Answer)
B. Anxiety disorder
C. Sleep disorder
D. Language disorder

Explanation: **Explanation:** Attention Deficit Hyperactivity Disorder (ADHD), or Hyperkinetic Disorder, is characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity. It is highly comorbid, with approximately **60-80%** of affected children having at least one other psychiatric or developmental condition. **Why Elimination Disorder is the correct answer:** While children with ADHD may occasionally have higher rates of nocturnal enuresis due to developmental delays or sleep issues, **Elimination Disorders (Enuresis and Encopresis)** are not formally recognized as standard associated comorbidities in major diagnostic classifications (DSM-5/ICD-11) for ADHD. In the context of this competitive exam question, it is the "least likely" association compared to the other three well-established comorbidities. **Analysis of Incorrect Options:** * **Anxiety Disorder:** Up to 25-35% of children with ADHD have a co-occurring anxiety disorder. The constant struggle with executive dysfunction often leads to performance anxiety and social stress. * **Sleep Disorder:** Sleep disturbances (delayed sleep onset, restless leg syndrome, and disordered breathing) are found in about 50% of ADHD cases. * **Language Disorder:** ADHD is frequently associated with Communication Disorders and Specific Learning Disorders (SLD). There is a significant overlap between ADHD and difficulties in expressive language and reading (Dyslexia). **High-Yield Clinical Pearls for NEET-PG:** * **Most common comorbidity:** Oppositional Defiant Disorder (ODD) is the most frequent (approx. 50%). * **Gender Ratio:** More common in boys (approx. 3:1). * **Neurobiology:** Associated with dysfunction in the **Prefrontal Cortex** and neurotransmitter imbalances in **Dopamine and Norepinephrine**. * **Drug of Choice:** Methylphenidate (Psychostimulant). Non-stimulant alternative: Atomoxetine.

Question 113: What is the most useful drug in the management of enuresis?

A. Haloperidol
B. Diazepam
C. Trimipramine (Correct Answer)
D. Chlorpromazine

Explanation: ### Explanation **Correct Answer: C. Trimipramine** **Medical Concept:** Enuresis (bedwetting) is often managed pharmacologically using **Tricyclic Antidepressants (TCAs)** when behavioral interventions fail. While **Imipramine** is the most commonly cited TCA for this condition, **Trimipramine** belongs to the same class and shares the same therapeutic mechanism. TCAs work in enuresis through a triple action: 1. **Anticholinergic effect:** Increases bladder capacity by relaxing the detrusor muscle. 2. **Alpha-adrenergic stimulation:** Increases internal sphincter tone. 3. **Alteration of sleep architecture:** Lightens sleep, allowing the child to wake up when the bladder is full. **Analysis of Incorrect Options:** * **A. Haloperidol:** A typical antipsychotic (D2 blocker) used for schizophrenia or Tourette’s. It has no role in bladder control and may cause extrapyramidal side effects. * **B. Diazepam:** A benzodiazepine used for anxiety or seizures. It can actually worsen enuresis by deepening sleep, making it harder for the child to wake up to void. * **D. Chlorpromazine:** A low-potency antipsychotic. While it has some anticholinergic properties, it is not indicated for enuresis and carries a high side-effect profile (sedation, hypotension). **NEET-PG High-Yield Pearls:** * **First-line treatment:** Behavioral therapy (Enuresis Alarms/Pad and Bell) is the gold standard. * **Drug of Choice (DOC):** **Desmopressin (DDAVP)**, an ADH analogue, is the preferred pharmacological agent due to its safety profile. * **TCAs (Imipramine/Trimipramine):** Used as second-line therapy. They have a high relapse rate once discontinued and carry a risk of cardiotoxicity in overdose. * **Diagnosis:** Enuresis is diagnosed only after the **chronological age of 5 years** (developmental age).

Question 114: Oedipus complex is typically seen in which age group and gender?

A. Girls aged 1 to 3 years
B. Girls aged 3 to 5 years
C. Boys aged 1 to 3 years
D. Boys aged 3 to 5 years (Correct Answer)

Explanation: ### Explanation The **Oedipus complex** is a central concept in Sigmund Freud’s theory of psychosexual development. It occurs during the **Phallic Stage**, which typically spans the ages of **3 to 6 years** (most commonly tested as 3 to 5 years). **Why Option D is Correct:** In Freudian theory, the Oedipus complex describes a **boy's** unconscious sexual desire for his mother and a concurrent sense of rivalry and hostility toward his father. The resolution of this complex occurs when the boy identifies with his father to alleviate "castration anxiety," leading to the development of the **Superego**. **Analysis of Incorrect Options:** * **Options A & B (Girls):** While the term is sometimes used broadly, the female equivalent is specifically known as the **Electra complex** (proposed by Carl Jung). In this stage, girls experience "penis envy" and a desire for their father. * **Options A & C (1 to 3 years):** This age range corresponds to the **Anal Stage**, where the focus is on toilet training and sphincter control. The Phallic stage (and thus the Oedipus complex) only begins after age 3. **Clinical Pearls for NEET-PG:** * **Sequence of Stages:** Oral (0-1y) → Anal (1-3y) → **Phallic (3-6y)** → Latency (6y-Puberty) → Genital (Puberty onwards). * **Primary Conflict:** The Phallic stage is characterized by the transition from autoeroticism to object relations. * **Resolution:** Successful resolution leads to gender identity and moral development; failure to resolve it is linked to neuroses in adulthood. * **Castration Anxiety:** The specific fear in boys during this stage that the father will punish their desire for the mother by emasculating them.

Question 115: What is the IQ range for mild mental retardation?

A. Less than 50
B. 50-70 (Correct Answer)
C. 70-100
D. Greater than 100

Explanation: **Explanation:** Intellectual Disability (ID), formerly known as Mental Retardation, is characterized by significant limitations in both intellectual functioning (IQ) and adaptive behavior. According to the **ICD-10 classification**, the IQ range for **Mild Mental Retardation is 50 to 70**. **Why Option B is correct:** Mild ID (IQ 50-70) constitutes the largest segment of the affected population (approx. 85%). These individuals are considered **"Educable."** They can typically achieve academic skills up to a 6th-grade level and can live independently in the community with minimal support. **Analysis of Incorrect Options:** * **Option A (Less than 50):** This encompasses Moderate (35-49), Severe (20-34), and Profound (<20) ID. Individuals with Moderate ID are "Trainable," while those with Severe/Profound ID require constant supervision. * **Option C (70-100):** An IQ of 71-84 is classified as **Borderline Intellectual Functioning**. An IQ of 90-110 is considered "Average." * **Option D (Greater than 100):** This represents average to superior intelligence and does not fall under the spectrum of intellectual disability. **High-Yield Clinical Pearls for NEET-PG:** * **Classification (ICD-10):** * **Mild:** 50–70 (Educable) * **Moderate:** 35–49 (Trainable) * **Severe:** 20–34 (Survival words/Basic habits) * **Profound:** < 20 (Total supervision) * **DSM-5 Update:** The DSM-5 has shifted the focus from IQ scores alone to **adaptive functioning** (conceptual, social, and practical domains) to determine the severity of Intellectual Disability. * **Most Common Genetic Cause:** Down Syndrome (Trisomy 21). * **Most Common Inherited Cause:** Fragile X Syndrome.

Question 116: An IQ level of 45 is classified as which of the following?

A. Mild mental retardation
B. Moderate mental retardation (Correct Answer)
C. Severe mental retardation
D. Profound mental retardation

Explanation: ### Explanation Intellectual Disability (ID), formerly known as Mental Retardation, is classified based on Intelligence Quotient (IQ) scores. According to the ICD-10 and DSM-IV classifications, an IQ of 45 falls into the **Moderate** category. **1. Why the Correct Answer is Right:** * **Moderate Intellectual Disability (IQ 35–49):** Individuals in this range can acquire communication skills in early childhood and benefit from vocational training. They can perform semi-skilled work under supervision but usually require guidance in social and economic matters. An IQ of 45 sits squarely in the middle of this range. **2. Why the Other Options are Wrong:** * **A. Mild (IQ 50–70):** These are "educable" individuals. They can reach an academic level of approximately 6th grade and live independently with minimal support. * **C. Severe (IQ 20–34):** These individuals are "trainable." They may learn basic self-care (like feeding) and simple speech but require a highly structured environment and constant supervision. * **D. Profound (IQ < 20):** These individuals have minimal sensorimotor functioning and require 24-hour nursing care and constant supervision for all activities of daily living. **3. High-Yield Clinical Pearls for NEET-PG:** * **Most Common Type:** Mild ID is the most common, accounting for about 85% of cases. * **Diagnosis Criteria:** Diagnosis requires deficits in both **intellectual functioning** (IQ) and **adaptive functioning** (conceptual, social, and practical domains) with onset during the developmental period. * **Borderline Intelligence:** Refers to an IQ range of **71–84**. * **Binet’s Formula:** $IQ = \frac{\text{Mental Age (MA)}}{\text{Chronological Age (CA)}} \times 100$. * **Common Genetic Causes:** Down Syndrome (most common overall) and Fragile X Syndrome (most common inherited cause).

Question 117: Which of the following statements is not true regarding autistic disorder?

A. Impaired social interaction and communication
B. Impaired imagination and imaginative play
C. Language developmental delay
D. Vision problems (Correct Answer)

Explanation: **Explanation:** Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by a triad of impairments: social interaction, communication, and restricted/repetitive patterns of behavior. **Why "Vision Problems" is the correct answer:** Vision problems are **not** a diagnostic feature or a core clinical manifestation of autism. While children with autism may exhibit atypical visual behaviors (such as avoiding eye contact, looking at objects from the corners of their eyes, or being hypersensitive to light), their actual visual acuity and ocular anatomy are typically normal. **Analysis of Incorrect Options:** * **Option A (Impaired social interaction and communication):** This is the hallmark of ASD. It includes a lack of social-emotional reciprocity, poor non-verbal communication (e.g., lack of pointing), and difficulty developing and maintaining relationships. * **Option B (Impaired imagination and imaginative play):** Children with autism often show a lack of varied, spontaneous make-believe play or social imitative play. They tend to play with toys in a repetitive or ritualistic manner (e.g., lining up cars instead of "driving" them). * **Option C (Language developmental delay):** Delay in, or total lack of, the development of spoken language is a common feature. Even when speech is present, it is often characterized by echolalia (repetition of words) or idiosyncratic use of language. **High-Yield Clinical Pearls for NEET-PG:** * **Age of Onset:** Symptoms must be present in the early developmental period (typically recognized before age 3). * **M-CHAT:** The Modified Checklist for Autism in Toddlers is the most common screening tool used between 16–30 months. * **Associated Features:** 70% of cases are associated with Intellectual Disability; 25% develop Seizures. * **Prognosis:** The best predictors of long-term outcome are the **level of IQ** and the **development of communicative language** by age 5.

Question 118: For a definitive diagnosis of mental retardation, a reduced level of intellectual functioning should be seen along with what?

A. Impaired motor skills
B. Impaired speech
C. Academic difficulties
D. Impaired adaptive functioning (Correct Answer)

Explanation: To diagnose **Intellectual Disability (ID)**—formerly known as Mental Retardation—the presence of a low Intelligence Quotient (IQ) alone is insufficient. According to both the **DSM-5** and **ICD-11**, a definitive diagnosis requires deficits in two core domains: 1. **Intellectual Functioning:** Deficits in mental abilities such as reasoning, problem-solving, and abstract thinking (typically an **IQ score < 70**). 2. **Adaptive Functioning:** Failure to meet developmental and sociocultural standards for personal independence and social responsibility. This refers to how well a person navigates daily life (e.g., communication, self-care, and social skills). ### Why the other options are incorrect: * **A & B (Motor Skills & Speech):** While delays in motor development and speech are common clinical presentations in children with ID, they are not mandatory diagnostic criteria. They are often considered "associated features" or symptoms of the underlying condition rather than the defining diagnostic pillar. * **C (Academic Difficulties):** While individuals with ID almost always face academic challenges, "academic difficulty" is a broad term. It can be caused by Specific Learning Disorders (e.g., Dyslexia) or ADHD in children with normal IQ. Therefore, it is not specific enough for a diagnosis of ID. ### NEET-PG High-Yield Pearls: * **DSM-5 Change:** The severity of ID is now determined by **adaptive functioning** (conceptual, social, and practical domains) rather than IQ scores alone. * **Age of Onset:** Deficits must manifest during the **developmental period** (typically before age 18). * **Most Common Cause:** The most common preventable cause is **Fetal Alcohol Syndrome**; the most common inherited cause is **Fragile X Syndrome**; the most common chromosomal cause is **Down Syndrome**. * **IQ Ranges (Old Classification):** Mild (50-70), Moderate (35-49), Severe (20-34), Profound (<20).

Question 119: A person with an IQ of 55 falls into which category of intellectual disability?

A. Mild intellectual disability (Correct Answer)
B. Moderate intellectual disability
C. Severe intellectual disability
D. Profound intellectual disability

Explanation: **Explanation:** Intellectual Disability (ID) is classified based on Intelligence Quotient (IQ) scores, which measure cognitive functioning. According to the ICD-10 and DSM-IV criteria (frequently tested in NEET-PG), the classification is as follows: * **Mild ID (IQ 50–69):** This is the most common category (approx. 85%). Individuals are "educable," can acquire academic skills up to the 6th-grade level, and can live independently with minimal support. **An IQ of 55 falls squarely within this range.** * **Moderate ID (IQ 35–49):** These individuals are "trainable." They can acquire communication and basic health/safety skills but usually function at a 2nd-grade level and require supervised living. * **Severe ID (IQ 20–34):** Individuals have very limited communication and require significant support for daily tasks and close supervision. * **Profound ID (IQ <20):** These individuals have minimal verbal capacity and require 24-hour nursing care and total assistance for self-care. **Clinical Pearls for NEET-PG:** 1. **DSM-5 Update:** While IQ scores are still used, the DSM-5 emphasizes **adaptive functioning** (conceptual, social, and practical domains) rather than IQ scores alone to determine the severity of ID. 2. **Most Common Cause:** The most common genetic cause of ID is **Down Syndrome**, while the most common inherited cause is **Fragile X Syndrome**. 3. **Borderline Intelligence:** Refers to an IQ range of **70–79** (V-code in DSM). 4. **Prevalence:** Approximately 1–3% of the general population.

Question 120: An IQ score under 24 is classified as what level of intellectual disability?

A. Imbecile
B. Borderline intellectual functioning
C. Moron
D. Idiot (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Idiot** This question refers to the historical classification of Intellectual Disability (ID), which was based on IQ ranges before the modern DSM-5/ICD-11 terminology (Mild, Moderate, Severe, Profound) was adopted. * **Idiot:** This term was historically used for individuals with the most severe level of intellectual impairment, corresponding to an **IQ score below 25**. In modern clinical practice, this corresponds to **Profound Intellectual Disability**. These individuals typically require constant supervision and 24-hour care for basic needs. **Analysis of Incorrect Options:** * **A. Imbecile:** Historically used for individuals with an **IQ of 25–49**. This corresponds to modern-day **Moderate to Severe Intellectual Disability**. * **B. Borderline Intellectual Functioning:** This refers to individuals with an **IQ of 70–79**. They do not meet the criteria for intellectual disability (which requires an IQ <70) but function below the average range. * **C. Moron:** Historically used for individuals with an **IQ of 50–69**. This corresponds to modern-day **Mild Intellectual Disability**. **High-Yield Clinical Pearls for NEET-PG:** * **IQ Calculation:** $IQ = \frac{\text{Mental Age (MA)}}{\text{Chronological Age (CA)}} \times 100$. * **Modern Classification (ICD-10/DSM-IV):** * **Mild:** IQ 50–69 (Educable; most common type, ~85%). * **Moderate:** IQ 35–49 (Trainable). * **Severe:** IQ 20–34 (Survival words). * **Profound:** IQ < 20 or 25 (Life support). * **DSM-5 Update:** Diagnosis is no longer based solely on IQ scores; it now emphasizes **adaptive functioning** in conceptual, social, and practical domains. * **Most Common Cause:** The most common genetic cause of ID is **Down Syndrome**, while the most common inherited cause is **Fragile X Syndrome**.

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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