Substance Use Disorders — MCQs
Which of the following is a validated screening tool for alcohol use disorder?
ADHD in childhood can lead to which of the following in the future?
Which of the following strategies are part of the National Leprosy Control Programme?
Which of the following statements about screening for chlamydia and gonorrhea is MOST accurate?
Best therapy suited to teach daily life skills to a child with intellectual disability:
A 16-year-old girl is in your office for a preparticipation sports examination. She plans to play soccer in the fall, and needs her form filled out. Which of the following history or physical examination findings is usually considered a contraindication to playing contact sports?
A child with Down syndrome is typically mentally retarded. Which of the following cytogenetic abnormalities is NOT a cause of Down syndrome?
What is the age range for early adolescence?
Which of the following conditions is NOT associated with joint hyperextensibility?
All of the following are associated with Down syndrome except?
Substance Use Disorders Indian Medical PG Practice Questions and MCQs
Question 1: Which of the following is a validated screening tool for alcohol use disorder?
- A. AUDIT
- B. CAGE questionnaire
- C. SADQ
- D. All of the options (Correct Answer)
Explanation: ***CAGE questionnaire and AUDIT*** - Both **CAGE** and **AUDIT** are widely validated screening tools specifically designed for alcohol use disorder [1]. - **CAGE** is a brief 4-item tool focusing on **C**ut down, **A**nnoyed, **G**uilty, and **E**ye-opener - ideal for quick screening in clinical settings [1]. - **AUDIT** (Alcohol Use Disorders Identification Test) is a comprehensive 10-item tool assessing consumption patterns, drinking behaviors, and alcohol-related problems. - AUDIT is considered the **gold standard** for screening and can assess risk levels and severity. *Why not SADQ alone?* - **SADQ** (Severity of Alcohol Dependence Questionnaire) is primarily a **severity assessment tool**, not a screening tool. - It is a 20-item instrument used to measure the **degree of alcohol dependence** in individuals already identified with alcohol problems. - While valuable for treatment planning, SADQ is more detailed and designed for assessment rather than initial screening [1]. - However, all three tools are validated and used in alcohol use disorder evaluation - CAGE and AUDIT for screening, SADQ for severity assessment.
Question 2: ADHD in childhood can lead to which of the following in the future?
- A. Intellectual changes
- B. Alcoholism
- C. Antisocial behaviour
- D. All of the options (Correct Answer)
Explanation: ***All of the options*** - Childhood ADHD is associated with an increased risk of developing various long-term negative outcomes, including **substance use disorders** (like alcoholism), **antisocial behaviors**, and impacts on **academic and occupational functioning** which can be broadly termed intellectual or cognitive impacts. - The inattentiveness, impulsivity, and hyperactivity characteristic of ADHD can disrupt normal development, leading to difficulties in social interactions, educational attainment, and emotional regulation, all contributing to these wider issues. *Intellectual changes* - While ADHD does not directly cause an intellectual disability, it can significantly impact **academic performance**, executive function, and the ability to apply learned knowledge, leading to what might be perceived as intellectual challenges or underachievement. - Difficulties with sustained attention, organization, and impulse control can hinder learning processes and the acquisition of new skills, influencing cognitive development and application. *Alcoholism* - Individuals with ADHD, particularly those with untreated or poorly managed symptoms, have a significantly **higher risk of developing substance use disorders**, including alcoholism. - The impulsive nature and difficulty with self-regulation often seen in ADHD can contribute to engaging in risky behaviors, including substance experimentation and dependence, as a form of self-medication or coping mechanism. *Antisocial behaviour* - ADHD, especially when comorbid with **oppositional defiant disorder (ODD)** or **conduct disorder (CD)**, is a significant risk factor for the development of antisocial behaviors and later antisocial personality disorder. - Impulsivity, poor emotional regulation, and difficulties understanding consequences can predispose individuals with ADHD to violate social norms and engage in aggressive or non-compliant actions.
Question 3: Which of the following strategies are part of the National Leprosy Control Programme?
- A. Early detection of cases and short course multi-drug therapy (Correct Answer)
- B. Chemoprophylaxis with dapsone and rehabilitation
- C. Short course multi-drug therapy and chemoprophylaxis
- D. Rehabilitation and early detection of cases
Explanation: ***Early detection of cases and short course multi-drug therapy*** - The primary strategy of the National Leprosy Control Programme (NLCP) is to actively identify new cases early to prevent disabilities. - **Multi-drug therapy (MDT)**, a short-course regimen, is administered to cure the disease and interrupt transmission. - This combination represents the **core control strategy** of NLCP. *Chemoprophylaxis with dapsone and rehabilitation* - **Chemoprophylaxis with dapsone** is not a standard strategy under NLCP due to concerns about resistance and limited effectiveness for mass prevention. - **Rehabilitation** is important for disability management but is a secondary/tertiary prevention strategy, not a primary control measure. *Short course multi-drug therapy and chemoprophylaxis* - While **MDT** is a cornerstone of NLCP, **chemoprophylaxis** is not included as a widespread intervention. - The focus remains on treating diagnosed cases rather than mass preventive drug administration. *Rehabilitation and early detection of cases* - **Early detection** is indeed a key component, but pairing it with **rehabilitation** alone misses the critical treatment component. - The core control strategy requires both early detection **and MDT treatment**, not just detection and rehabilitation.
Question 4: Which of the following statements about screening for chlamydia and gonorrhea is MOST accurate?
- A. Screening is not cost-effective and should be avoided in low-risk populations
- B. Screening is recommended for sexually active women under 25, men who have sex with men, and pregnant women (Correct Answer)
- C. Screening is only recommended for patients with symptoms
- D. Annual screening is recommended for all sexually active adults regardless of age or risk factors
Explanation: ***Screening is recommended for sexually active women under 25, men who have sex with men, and pregnant women*** - This statement aligns with current **CDC guidelines** which prioritize screening in populations with a higher prevalence or increased risk of complications from chlamydia and gonorrhea. - Early detection and treatment in these groups can prevent serious long-term health consequences like **pelvic inflammatory disease (PID)**, **infertility**, and **adverse pregnancy outcomes**. *Screening is not cost-effective and should be avoided in low-risk populations* - While screening in genuinely low-risk populations might be less cost-effective, chlamydia and gonorrhea often have **asymptomatic presentations**, making targeted screening essential for disease control. - The long-term costs associated with untreated infections (e.g., infertility treatment, chronic pain) often outweigh the costs of screening, even in lower-prevalence settings, when focused on at-risk groups. *Screening is only recommended for patients with symptoms* - This statement is incorrect because a significant proportion of chlamydia and gonorrhea infections are **asymptomatic**, meaning individuals can be infected and transmit the infection without showing any symptoms. - Relying only on symptoms would lead to widespread **undetected infections** and continued transmission within communities. *Annual screening is recommended for all sexually active adults regardless of age or risk factors* - While broad screening might seem comprehensive, current guidelines emphasize **targeted screening** based on age, sexual history, and risk factors to optimize resource allocation and maximize public health impact. - Overly broad screening in genuinely low-risk older populations may not be the most **cost-effective strategy**.
Question 5: Best therapy suited to teach daily life skills to a child with intellectual disability:
- A. Applied Behavior Analysis (ABA) (Correct Answer)
- B. Cognitive Behavioral Therapy (CBT)
- C. Social skills training
- D. Self-instructional training
Explanation: **Applied Behavior Analysis (ABA)** - **ABA** is a highly structured, evidence-based therapy that focuses on teaching specific skills by breaking them down into smaller steps and using **positive reinforcement**. - It is particularly effective for children with intellectual disabilities in acquiring **adaptive daily living skills**, communication, and social behaviors. *Cognitive Behavioral Therapy (CBT)* - **CBT** primarily targets changing negative thought patterns and behaviors, requiring a level of abstract reasoning that may be challenging for children with significant intellectual disabilities. - While it can be adapted, its core methods rely on cognitive processes that might not be the most direct approach for teaching basic daily life skills to a mentally challenged child. *Social skills training* - **Social skills training** focuses specifically on improving social interactions and communication within social contexts. - While important for overall development, it is a subcomponent of broader skill development and may not directly address all aspects of **daily living skills** in a comprehensive manner. *Self-instructional training* - **Self-instructional training** involves teaching individuals to guide themselves through tasks using internal speech or self-talk, which relies on a child's ability to internalize and follow complex verbal instructions. - This approach might be too cognitively demanding for a child with significant developmental delays when the primary goal is mastering basic, functional daily life skills.
Question 6: A 16-year-old girl is in your office for a preparticipation sports examination. She plans to play soccer in the fall, and needs her form filled out. Which of the following history or physical examination findings is usually considered a contraindication to playing contact sports?
- A. Congenital heart disease, repaired
- B. Obesity
- C. Absence of a single ovary
- D. Absence of a single eye (Correct Answer)
Explanation: **Explanation:** The primary goal of a preparticipation physical evaluation (PPE) is to identify conditions that predispose an athlete to injury or sudden death. In the context of contact or collision sports (like soccer), the **absence of a single paired organ** is a critical consideration. **Why Option D is Correct:** The **absence of a single eye** (or a functional loss of vision in one eye) is considered a contraindication to contact sports because the risk of injury to the remaining eye is high. If the "good" eye is injured, the patient faces permanent, total blindness. While some guidelines allow participation if the athlete wears high-quality protective eyewear (polycarbonate lenses), traditional teaching for exams like NEET-PG classifies a single eye as a contraindication for high-impact contact sports. **Analysis of Incorrect Options:** * **A. Congenital heart disease (repaired):** Most children with successfully repaired CHD (e.g., ASD or VSD) without residual pulmonary hypertension or arrhythmias can participate in sports. * **B. Obesity:** Obesity is not a contraindication; in fact, sports participation is actively encouraged as part of weight management, provided there are no underlying cardiovascular risks. * **C. Absence of a single ovary:** Unlike the eyes or kidneys, the loss of a single ovary does not pose a significant risk to life or essential function, as the remaining ovary is well-protected within the pelvic cavity and maintains hormonal/reproductive function. **High-Yield Clinical Pearls for NEET-PG:** * **Single Kidney:** Previously a contraindication, but current AAP guidelines allow participation in contact sports if the athlete is informed of the risks and uses protective padding. * **Atlantoaxial Instability:** A classic contraindication for contact sports in patients with **Down Syndrome**. * **Hypertrophic Cardiomyopathy (HCM):** The most common cause of sudden cardiac death in young athletes; it is an absolute contraindication to competitive sports. * **Acute Splenomegaly (e.g., Infectious Mononucleosis):** Contraindication due to the risk of splenic rupture; athletes must wait at least 3–4 weeks before returning to play.
Question 7: A child with Down syndrome is typically mentally retarded. Which of the following cytogenetic abnormalities is NOT a cause of Down syndrome?
- A. Deleted chromosome 21 (Correct Answer)
- B. Trisomy 21
- C. Robertsonian translocation
- D. Mosaicism
Explanation: **Explanation:** Down syndrome (Trisomy 21) is caused by an **excess of genetic material** from chromosome 21. Therefore, a **deleted chromosome 21 (Option A)** would result in monosomy or partial monosomy, which does not cause Down syndrome; in fact, complete autosomal monosomies are generally incompatible with life. **Analysis of Options:** * **Trisomy 21 (Nondisjunction):** The most common cause (approx. 95%). It usually occurs due to meiotic error, most frequently during maternal Meiosis I. Risk increases significantly with advanced maternal age. * **Robertsonian Translocation:** Occurs in about 3–4% of cases. The extra long arm of chromosome 21 is attached to another acrocentric chromosome (usually 14 or 22). This is the only form that can be inherited from a carrier parent, necessitating parental karyotyping. * **Mosaicism:** Occurs in 1–2% of cases. It results from mitotic nondisjunction after fertilization, leading to two cell lines (one normal, one trisomic). These patients often have a milder phenotype. **NEET-PG High-Yield Pearls:** * **Most common cause:** Meiotic nondisjunction (95%). * **Recurrence risk:** ~1% for Trisomy 21; however, if a parent is a **14;21 translocation carrier**, the risk is ~10-15% (maternal) or ~2-3% (paternal). If a parent has a **21;21 translocation**, the recurrence risk is **100%**. * **Screening:** First-trimester screening includes Dual Marker (PAPP-A and β-hCG) and Ultrasound (Nuchal Translucency). * **Quadruple Test:** Low AFP, Low Estriol, **High hCG, High Inhibin A** (Mnemonic: **HI**gh for **H**CG and **I**nhibin).
Question 8: What is the age range for early adolescence?
- A. 8-11 years
- B. 10-13 years (Correct Answer)
- C. 14-15 years
- D. 16-19 years
Explanation: ### Explanation **Correct Answer: B (10-13 years)** Adolescence is the developmental period marking the transition from childhood to adulthood. According to standard pediatric guidelines (including the WHO and the American Academy of Pediatrics), adolescence is divided into three distinct stages based on physical, cognitive, and psychosocial changes: 1. **Early Adolescence (10–13 years):** This stage is characterized by the onset of puberty, the development of secondary sexual characteristics (Tanner Stages 1-3), and a shift toward concrete operational thinking. 2. **Middle Adolescence (14–16 years):** This stage involves the completion of physical growth, increased peer group influence, and the emergence of abstract thinking. 3. **Late Adolescence (17–19/21 years):** This stage focuses on identity formation, future orientation, and emotional independence. **Analysis of Incorrect Options:** * **Option A (8-11 years):** While puberty may begin as early as age 8 in girls (thelarche), the formal definition of adolescence begins at age 10. * **Option C (14-15 years):** This range falls within **Middle Adolescence**, where the focus shifts from physical changes to peer conformity and independence. * **Option D (16-19 years):** This range encompasses **Late Adolescence**, characterized by the transition into adult roles and cognitive maturity. **High-Yield Clinical Pearls for NEET-PG:** * **WHO Definition:** The WHO defines "Adolescents" as individuals aged **10–19 years**, "Youth" as **15–24 years**, and "Young People" as **10–24 years**. * **Growth Spurt:** The peak height velocity (PHV) usually occurs during early-to-middle adolescence (Tanner Stage 2-3 in girls, Stage 3-4 in boys). * **Psychosocial Milestone:** The hallmark of early adolescence is a preoccupation with body image due to rapid pubertal changes.
Question 9: Which of the following conditions is NOT associated with joint hyperextensibility?
- A. Stickler Syndrome
- B. Hyperlysinemia
- C. Fragile X syndrome
- D. Hurler's syndrome (Correct Answer)
Explanation: **Explanation:** The correct answer is **Hurler’s Syndrome (Mucopolysaccharidosis Type I)**. Unlike many connective tissue disorders that present with joint laxity, Hurler’s syndrome is characterized by **joint contractures and stiffness**. This occurs due to the progressive accumulation of glycosaminoglycans (GAGs) in the periarticular soft tissues, tendons, and ligaments, leading to restricted mobility and the classic "claw hand" deformity. **Analysis of Options:** * **Stickler Syndrome:** A connective tissue disorder caused by collagen mutations (Type II and XI). It presents with a triad of high myopia (leading to retinal detachment), hearing loss, and **joint hypermobility** (which often progresses to early-onset osteoarthritis). * **Hyperlysinemia:** An autosomal recessive metabolic disorder. Elevated lysine levels interfere with the cross-linking of collagen fibers, resulting in muscle hypotonia and **joint laxity**. * **Fragile X Syndrome:** The most common cause of inherited intellectual disability. Clinical features include a long face, large ears, macroorchidism, and significant **joint hyperextensibility** due to underlying connective tissue dysplasia. **High-Yield Clinical Pearls for NEET-PG:** * **The "Rule of Thumb":** Most Mucopolysaccharidoses (MPS) present with stiff joints, **EXCEPT for Morquio Syndrome (MPS IV)**, which is uniquely associated with significant joint laxity and ligamentous hypermobility. * **Differential for Joint Hypermobility:** Always consider Ehlers-Danlos Syndrome, Marfan Syndrome, Osteogenesis Imperfecta, and Homocystinuria. * **Hurler vs. Hunter:** Hurler (MPS I) has corneal clouding; Hunter (MPS II) does not ("The Hunter needs clear eyes to see the target"). Both typically feature joint stiffness.
Question 10: All of the following are associated with Down syndrome except?
- A. Sensory hearing loss (Correct Answer)
- B. VSD
- C. Hypothyroidism
- D. Duodenal atresia
Explanation: **Explanation:** The correct answer is **A (Sensory hearing loss)**. In Down syndrome (Trisomy 21), hearing impairment is extremely common (up to 75% of cases), but it is primarily **Conductive hearing loss**. This is due to craniofacial abnormalities leading to narrow external auditory canals and a high incidence of chronic otitis media with effusion (serous otitis media). While sensorineural hearing loss can occur, conductive loss is the hallmark association. **Analysis of other options:** * **B. VSD (Ventricular Septal Defect):** Congenital heart disease (CHD) occurs in 40-50% of Down syndrome patients. While **Endocardial Cushion Defect (AVSD)** is the most characteristic, VSD is the second most common cardiac anomaly in these children. * **C. Hypothyroidism:** Endocrine disorders are frequent in Down syndrome. Both congenital and acquired (autoimmune) hypothyroidism occur at a much higher rate than in the general population, necessitating regular thyroid function screening. * **D. Duodenal Atresia:** Down syndrome is the most common chromosomal association with duodenal atresia (the "double bubble" sign). Approximately 30% of infants with duodenal atresia have Trisomy 21. **High-Yield Clinical Pearls for NEET-PG:** * **Most common CHD:** Atrioventricular Septal Defect (AVSD). * **Most common GI anomaly:** Duodenal atresia (though Hirschsprung disease is also associated). * **Hematological association:** Increased risk of **AMKL** (Acute Megakaryoblastic Leukemia) before age 3 and **ALL** (Acute Lymphoblastic Leukemia) after age 3. * **Neurological:** Early-onset Alzheimer’s disease (due to APP gene on Chromosome 21) and Atlanto-axial instability. * **Screening:** Annual thyroid function tests and hearing evaluations are mandatory.
Want unlimited practice?
Get full access to all questions, explanations, and performance tracking.
Start For Free