Child and Adolescent Psychiatry Practice Questions

Q: What is the IQ range for profound intellectual disability?

< 20. **Explanation:** Intellectual Disability (ID), formerly known as mental retardation, is classified based on Intelligence Quotient (IQ) scores, typically measured using standardized tests like the Stanford-Binet or Wechsler scales. According to the ICD-10 and DSM-IV classifications, the severity of ID is categorized into four levels: * **Correct Answer: D (< 20):** **Profound Intellectual Disability** is defined by an IQ score below 20. Individuals in this category require constant supervision and high-intensity support for all activities of daily living. They often have associated neurological conditions and limited communication skills. **Analysis of Incorrect Options:** * **Option A (50-70):** This represents **Mild Intellectual Disability**. This is the most common type (approx. 85%). These individuals are "educable" and can often achieve social and vocational adequacy with some support. * **Option B (35-50):** This represents **Moderate Intellectual Disability**. These individuals are considered "trainable." they can acquire simple communication and manual skills but usually require supervised living environments. * **Option C (20-35):** This represents **Severe Intellectual Disability**. These individuals may learn to talk and can be trained in elementary self-care hygiene, but they require significant support and supervision. **High-Yield Clinical Pearls for NEET-PG:** * **Normal IQ:** 90–109. * **Borderline Intelligence:** 70–79. * **Most Common Cause:** Genetic factors (e.g., Down Syndrome, Fragile X) are the most common identifiable causes, though many cases remain idiopathic. * **Assessment:** Diagnosis requires both an IQ score < 70 and significant deficits in **adaptive functioning** (conceptual, social, and practical skills) manifesting before age 18.

Q: Who proposed the stage of industry versus inferiority?

Erikson. **Explanation:** The correct answer is **Erikson**. Erik Erikson proposed the **Theory of Psychosocial Development**, which consists of eight stages from infancy to late adulthood. **Industry vs. Inferiority** is the **fourth stage**, occurring during the school-age years (approximately **6 to 12 years**). During this period, children focus on mastering academic and social skills. Success leads to a sense of **competence**, while failure or lack of encouragement results in feelings of inadequacy and inferiority. **Analysis of Incorrect Options:** * **Lorenz (Konrad Lorenz):** An ethologist known for the concept of **Imprinting** (the rapid learning process in newborn animals). * **Freud (Sigmund Freud):** Proposed the **Psychosexual Stages of Development** (Oral, Anal, Phallic, Latent, and Genital). The "Industry vs. Inferiority" stage corresponds to Freud’s **Latency stage**. * **Bleuler (Eugen Bleuler):** A Swiss psychiatrist who coined the term **"Schizophrenia"** and described the **4 A’s** (Ambivalence, Autism, Affective blunting, and Associative looseness). **High-Yield Clinical Pearls for NEET-PG:** * **Virtue of this stage:** The successful resolution of Industry vs. Inferiority results in the virtue of **Competence**. * **Stages Mnemonic:** **T**rust vs. Mistrust (Infancy), **A**utonomy vs. Shame (Toddler), **I**nitiative vs. Guilt (Preschool), **I**ndustry vs. Inferiority (School-age), **I**dentity vs. Role Confusion (Adolescence). * **Adolescence Stage:** "Identity vs. Role Confusion" is the most frequently asked stage in exams regarding teenage behavior.

Q: In autism spectrum disorder, which of the following is identified as the first biomarker?

Increased level of serotonin in the platelets. **Explanation:** The correct answer is **C. Increased level of serotonin in the platelets.** **Understanding the Concept:** Hyperserotonemia (elevated whole-blood or platelet serotonin levels) was the first biochemical marker identified in Autism Spectrum Disorder (ASD), discovered by Schain and Freedman in 1961. It remains one of the most robust and consistently replicated biological findings in psychiatry, present in approximately **one-third (30%)** of children with ASD. While its exact pathophysiological role is still being researched, it is thought to relate to altered serotonin transporter (SERT) function or synthesis during early neurodevelopment. **Analysis of Incorrect Options:** * **Option A:** In ASD, there is typically an **increased** brain volume (macrocephaly) and accelerated head circumference growth in children under 4 years, rather than a decrease. This is due to a lack of synaptic pruning. * **Option B:** Sleep disturbances are common in ASD, but they are characterized by **increased** sleep latency (difficulty falling asleep) and frequent nocturnal awakenings, not reduced latency. * **Option C:** While dopamine dysregulation is implicated in many neurodevelopmental disorders (like ADHD), there is no consistent evidence identifying increased dopamine as a primary or "first" biomarker for ASD. **NEET-PG High-Yield Pearls:** * **M-CHAT (Modified Checklist for Autism in Toddlers):** The most commonly used screening tool (done at 18–24 months). * **Gold Standard Diagnosis:** ADOS (Autism Diagnostic Observation Schedule) and ADI-R. * **Core Triad (DSM-5):** 1. Deficits in social communication/interaction; 2. Restricted, repetitive patterns of behavior/interests. * **Best Prognostic Factor:** The presence of communicative speech by age 5 and a higher IQ.

Q: All of the following are types of temperament EXCEPT?

Unpredictable. **Explanation:** The concept of temperament refers to the innate, biologically based behavioral style of a child. The most widely accepted classification comes from the **New York Longitudinal Study (NYLS)** conducted by **Thomas and Chess**. They identified nine dimensions of temperament, which cluster into three primary types. **Why "Unpredictable" is the correct answer:** "Unpredictable" is not a recognized category in the Thomas and Chess classification. While temperament involves patterns of biological regularity (rhythmicity), the term used to describe children with irregular patterns is "Difficult," not "Unpredictable." **Analysis of Incorrect Options:** * **Easy (40% of children):** These children are characterized by regularity in biological functions, positive approach to new stimuli, high adaptability to change, and a predominantly cheerful mood. * **Difficult (10% of children):** These children show irregularity in biological functions (e.g., sleep/hunger), withdrawal from new stimuli, slow adaptability, and frequent intense negative emotional expressions (crying/fretting). * **Slow to warm up (15% of children):** These children show low activity levels and initial withdrawal from new stimuli. They adapt slowly but eventually respond positively with repeated exposure. *Note: About 35% of children do not fit neatly into these three categories.* **High-Yield Clinical Pearls for NEET-PG:** * **Goodness of Fit:** This is the most important clinical concept related to temperament. It refers to the compatibility between the child’s temperament and the expectations/demands of their environment (parents). * **Dimensions:** Thomas and Chess identified **9 dimensions**: Activity level, Rhythmicity, Approach/Withdrawal, Adaptability, Threshold of responsiveness, Intensity of reaction, Quality of mood, Distractibility, and Attention span/Persistence. * Temperament is considered a precursor to adult **personality**.

Q: Poor scholastic performance is not associated with which of the following conditions?

Pica. **Explanation:** Poor scholastic performance is a multifactorial issue in child psychiatry, often stemming from cognitive, behavioral, or emotional disturbances. **Why Pica is the Correct Answer:** **Pica** is an eating disorder characterized by the persistent ingestion of non-nutritive, non-food substances (e.g., clay, chalk, paint) for at least one month. While it may be associated with nutritional deficiencies (like iron or zinc) or intellectual disability, Pica itself is a **behavioral feeding disorder** and does not inherently impair the cognitive or psychological processes required for academic learning. Therefore, it is not primarily associated with poor scholastic performance. **Analysis of Incorrect Options:** * **Specific Learning Disorder (SLD):** This is a neurodevelopmental disorder (e.g., Dyslexia, Dyscalculia) where a child has specific difficulties in reading, writing, or math despite normal intelligence. It is the most direct cause of poor scholastic performance. * **ADHD:** Characterized by inattention, hyperactivity, and impulsivity. Inattention leads to difficulty following instructions, finishing tasks, and staying organized, directly impacting academic grades. * **Anxiety:** Emotional disorders like Generalized Anxiety or School Phobia can lead to "cognitive interference," where the child's preoccupation with worry reduces concentration and memory, leading to a decline in school performance. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause** of poor scholastic performance is **Intellectual Disability (ID)**, followed by SLD and ADHD. * **SLD Diagnosis:** Requires a persistent difficulty for at least **6 months** despite targeted interventions. * **Pica Association:** Frequently seen in children with Autism Spectrum Disorder (ASD) and Intellectual Disability; always screen for **Lead Poisoning** and **Iron Deficiency Anemia**.

Q: What is the new terminology for mental retardation according to DSM-5?

Intellectual disability. **Explanation:** The **DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th Edition)** replaced the term "Mental Retardation" with **Intellectual Disability (Intellectual Developmental Disorder)**. This change reflects a shift toward a less stigmatizing clinical language and aligns with the International Classification of Diseases (ICD-11). **Why Option B is correct:** Under DSM-5, Intellectual Disability is defined by deficits in both **intellectual functioning** (reasoning, problem-solving) and **adaptive functioning** (independence, social responsibility). Crucially, the DSM-5 moved away from relying solely on IQ scores (e.g., <70) to determine severity, focusing instead on the level of adaptive impairment in conceptual, social, and practical domains. **Why other options are incorrect:** * **Option A & C:** "Mental handicap" and "Subnormal intelligence" are outdated, non-clinical terms that were used historically but lack the specific diagnostic criteria required by modern psychiatric frameworks. * **Option D:** "Lunatic" is an archaic, derogatory legal term used in the 19th century (e.g., the Indian Lunacy Act of 1912) and has no place in modern medical diagnosis. **High-Yield Clinical Pearls for NEET-PG:** * **Age of Onset:** Deficits must manifest during the **developmental period** (typically before age 18). * **Severity Levels:** Classified as Mild, Moderate, Severe, and Profound based on **adaptive functioning**, not just IQ. * **Most Common Cause:** Genetic factors (Down Syndrome is the most common chromosomal cause; Fragile X is the most common inherited cause). * **ICD-11 Update:** Uses the term **"Disorders of Intellectual Development."**

Q: ADHD is characterized by all of the following except:

Hallucinations. **Explanation:** Attention-Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder primarily characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development. **Why Hallucinations is the correct answer:** Hallucinations are sensory perceptions in the absence of external stimuli and are hallmark symptoms of **Psychotic Disorders** (e.g., Schizophrenia) or organic brain syndromes. They are **not** a diagnostic feature of ADHD. If a child with ADHD presents with hallucinations, clinicians must rule out comorbid conditions, mood disorders with psychotic features, or side effects of stimulant medications (though rare). **Analysis of Incorrect Options:** * **Hyperactivity:** Refers to excessive motor activity (fidgeting, inability to sit still) that is not appropriate for the child's age. It is one of the two core symptom domains in DSM-5. * **Impulsivity:** Refers to hasty actions that occur in the moment without forethought (e.g., interrupting others, inability to wait for a turn). * **Distractibility:** This is a key component of the **Inattention** domain. Patients are easily diverted by extraneous stimuli and struggle to maintain focus on tasks. **Clinical Pearls for NEET-PG:** * **Age of Onset:** Symptoms must be present before **age 12** (DSM-5 criteria). * **Setting:** Symptoms must be present in **two or more settings** (e.g., home and school). * **Gender:** More common in boys (approx. 3:1 ratio). * **Treatment:** The first-line pharmacological treatment is **Methylphenidate** (a CNS stimulant). Non-stimulant options include **Atomoxetine** (SNRI). * **Comorbidity:** Most common comorbid condition is **Oppositional Defiant Disorder (ODD)**.

Q: A 6-year-old child has a history of birth asphyxia, poor communication, slow mental and physical growth, difficulty interacting with others, limited interests, and becomes agitated when disturbed. What is the most likely diagnosis?

Autistic disorder. ### Explanation The clinical presentation points towards **Autistic Disorder** (now part of Autism Spectrum Disorder - ASD). The diagnosis is based on a triad of core deficits: 1. **Impaired Social Interaction:** "Difficulty interacting with others" and being "agitated when disturbed" (preference for solitude). 2. **Communication Deficits:** "Poor communication" and "slow mental growth." 3. **Restricted/Repetitive Behaviors:** "Limited interests" and resistance to change (agitation when the routine is disturbed). While birth asphyxia is a non-specific risk factor for neurodevelopmental delays, the specific combination of social withdrawal and restricted interests is pathognomonic for Autism. **Why other options are incorrect:** * **Hyperkinetic Child / ADHD (Options A & C):** These are characterized primarily by inattention, hyperactivity, and impulsivity. While children with ADHD may have social friction, they do not typically exhibit the profound lack of social reciprocity or restricted interests seen in Autism. * **Schizophrenia (Option D):** Very rare in a 6-year-old. It presents with hallucinations, delusions, and disorganized thought. While "social withdrawal" occurs, the developmental milestones in early childhood are usually normal until the prodromal phase, unlike the early-onset developmental delays described here. **NEET-PG High-Yield Pearls:** * **Age of Onset:** Symptoms must be present in the early developmental period (usually recognized by age 3). * **M-CHAT:** The Modified Checklist for Autism in Toddlers is a common screening tool. * **Prognosis:** The best predictors of long-term outcome are **IQ** and **language development** by age 5. * **Associated Condition:** Fragile X syndrome is the most common single-gene cause of Autism.

Question 1

What is the IQ range for profound intellectual disability?

Accepted Answer

< 20

Answer

50-70

Answer

35-50

Answer

20-35

Question 2

Who proposed the stage of industry versus inferiority?

Accepted Answer

Erikson

Answer

Lorenz

Answer

Freud

Answer

Bleuler

Question 3

In autism spectrum disorder, which of the following is identified as the first biomarker?

Accepted Answer

Increased level of serotonin in the platelets

Answer

Decreased brain volume in children less than 4 years

Answer

Reduced latency of sleep

Answer

Increased levels of dopamine

Question 4

All of the following are types of temperament EXCEPT?

Accepted Answer

Unpredictable

Answer

Slow to warm

Answer

Easy

Answer

Difficult

Question 5

The Lovaas-based Model is which type of intervention used in Autistic Spectrum Disorders?

Accepted Answer

Early Intensive behavioral and developmental intervention

Answer

Educational intervention

Answer

Cognitive and behavioral intervention

Answer

Social Skills training

Question 6

Poor scholastic performance is not associated with which of the following conditions?

Accepted Answer

Pica

Answer

Specific Learning Disorder (SLD)

Answer

Attention Deficit Hyperactivity Disorder (ADHD)

Answer

Anxiety

Question 7

What is the new terminology for mental retardation according to DSM-5?

Accepted Answer

Intellectual disability

Answer

Mental handicap

Answer

Subnormal intelligence

Answer

Lunatic person

Question 8

ADHD is characterized by all of the following except:

Accepted Answer

Hallucinations

Answer

Impulsivity

Answer

Distractibility

Answer

Hyperactivity

Question 9

An 8-year-old child complains of a lack of interest in studies for the past 6 months. The child also exhibits frequent quarrels with parents and reports frequent headaches. What is the most appropriate clinical approach?

Accepted Answer

Rule out depression.

Answer

Consider it a normal adolescent problem.

Answer

Rule out migraine.

Answer

Rule out oppositional defiant disorder.

Question 10

A 6-year-old child has a history of birth asphyxia, poor communication, slow mental and physical growth, difficulty interacting with others, limited interests, and becomes agitated when disturbed. What is the most likely diagnosis?

Accepted Answer

Autistic disorder

Answer

Hyperkinetic child

Answer

Attention deficit disorder

Answer

Schizophrenia

Child and Adolescent Psychiatry — MCQs

Child and Adolescent Psychiatry — MCQs

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