Growth and Development Practice Questions

Q: Trisomy 21 is described as which of the following syndromes?

Down's syndrome. **Explanation:** **Correct Answer: A. Down’s syndrome** Down’s syndrome is the most common chromosomal disorder and is caused by **Trisomy 21** (the presence of an extra copy of chromosome 21). This occurs primarily due to meiotic non-disjunction (95% of cases), though it can also result from Robertsonian translocation or mosaicism. It is the leading genetic cause of intellectual disability. **Analysis of Incorrect Options:** * **B. Turner Syndrome (45, XO):** This is a monosomy characterized by the complete or partial absence of one X chromosome in females. Clinical features include short stature, webbed neck, and streak ovaries. * **C. Klinefelter Syndrome (47, XXY):** This involves an extra X chromosome in males. It typically presents post-puberty with primary hypogonadism, gynecomastia, and infertility. * **D. Edward Syndrome (Trisomy 18):** This is the second most common autosomal trisomy. It is characterized by severe intellectual disability, micrognathia, low-set ears, and "rocker-bottom" feet. **High-Yield Clinical Pearls for NEET-PG:** * **Trisomy Mnemonics:** Remember the "Alphabet Rule": **E**dward = Trisomy **18** (E is the 5th letter, 1+8=9... or simply E for Eighteen); **P**atau = Trisomy **13** (P for Puberty starts at 13). * **Cardiac Defects:** The most common cardiac lesion in Down’s syndrome is an **Atrioventricular Septal Defect (AVSD)** / Endocardial cushion defect. * **Screening:** First-trimester screening (11–14 weeks) shows **increased Nuchal Translucency (NT)**, decreased PAPP-A, and increased β-hCG. * **GI Associations:** Duodenal atresia ("Double bubble sign") and Hirschsprung disease are significantly associated with Trisomy 21.

Q: A neonate has a large, purplish, slightly raised lesion on the skin of the forehead near the temporal area. As the child grows, the lesion grows as well and becomes increasingly prominent. This lesion may be a component of which of the following syndromes or diseases?

Sturge-Weber syndrome. **Explanation:** The clinical description of a large, purplish, slightly raised lesion on the forehead that grows proportionately with the child is characteristic of a **Port-wine stain (Nevus Flammeus)**. This is a congenital capillary malformation. **1. Why Sturge-Weber Syndrome (SWS) is correct:** SWS (Encephalotrigeminal Angiomatosis) is a neurocutaneous disorder characterized by a facial port-wine stain, typically in the distribution of the **trigeminal nerve** (ophthalmic and maxillary divisions). The underlying pathology involves a somatic mutation in the **GNAQ gene**, leading to vascular malformations in the skin, the eye (glaucoma), and the leptomeninges (ipsilateral leptomeningeal angioma). **2. Why the other options are incorrect:** * **Buerger's disease (Thromboangiitis obliterans):** A non-atherosclerotic inflammatory disease of small and medium-sized arteries/veins, strongly associated with heavy smoking, not congenital skin lesions. * **Milroy's disease:** A hereditary form of primary lymphedema caused by VEGFR3 mutations, presenting as lower limb swelling at birth, not vascular malformations. * **Osler-Weber-Rendu disease (Hereditary Hemorrhagic Telangiectasia):** Characterized by multiple telangiectasias on skin/mucous membranes and arteriovenous malformations (AVMs) in organs, but not a large, unilateral port-wine stain. **Clinical Pearls for NEET-PG:** * **Classic Triad of SWS:** Facial port-wine stain, Leptomeningeal angiomatosis (causing seizures/hemiparesis), and Glaucoma. * **Radiology:** Skull X-ray or CT shows characteristic **"Tram-track" calcifications** (gyriform calcifications) in the cerebral cortex. * **Management:** Port-wine stains are treated with **Pulse Dye Laser (PDL)**. Seizure control and monitoring for intraocular pressure are vital.

Q: A normal child develops the ability to use 10 words with meaning at what age?

18 months. **Explanation:** Language development follows a predictable chronological sequence in children. The ability to use **10 words with meaning** is a hallmark milestone of the **18-month-old** child. At this stage, the child transitions from using single words to a rapidly expanding vocabulary, though they have not yet mastered joining words into sentences. **Analysis of Options:** * **12 months (Incorrect):** At one year, a child typically says **1–3 words with meaning** (usually "Mama" or "Dada" specifically). They can follow simple one-step commands with gestures. * **15 months (Incorrect):** A child at this age typically has a vocabulary of **4–6 words**. They can also point to one body part when asked. * **18 months (Correct):** This is the milestone for a **10-word vocabulary**. Additionally, the child can point to common objects and identify 2–3 body parts. * **24 months (Incorrect):** By two years, a child has a significant "language explosion," using **50 or more words**. Crucially, they begin to form **2-word phrases/sentences** (e.g., "Want milk") and use pronouns like "I," "Me," and "You." **High-Yield Clinical Pearls for NEET-PG:** * **Language vs. Speech:** Language is the most sensitive indicator of intellectual development. * **The "Rule of 2s" at 2 years:** 2-word sentences, 200-word vocabulary (approximate range), and 2/4 (50%) of speech is understood by strangers. * **3 years:** Uses 3-word sentences and gives their full name/gender. * **4 years:** Tells stories and uses 4-word sentences. * **Red Flag:** If a child does not say single words by 15 months or 2-word phrases by 24 months, a developmental evaluation is indicated.

Q: At what age range does normal dysfluency of speech typically occur in a child?

2 and 4 years. **Explanation:** **Normal dysfluency** (also known as developmental stuttering) is a physiological phase in speech development where a child repeats sounds, syllables, or phrases. 1. **Why Option A is correct:** Between the ages of **2 and 4 years**, a child’s cognitive and language processing abilities often outpace their motor speech coordination. Their vocabulary is expanding rapidly, and they are learning to construct complex sentences. This "lag" results in hesitations or repetitions (e.g., "I-I-I want milk"). It is considered a normal developmental milestone, typically lasting less than six months, and usually resolves spontaneously without intervention. 2. **Why other options are incorrect:** * **Options B, C, and D:** By age 4, most children have developed the neuromuscular coordination required for fluent speech. Dysfluency that persists beyond age 4 or 5, or begins after this period, is more likely to be classified as **true stuttering** (pathological stammering) rather than developmental dysfluency. **High-Yield Clinical Pearls for NEET-PG:** * **Red Flags for Pathological Stuttering:** Facial grimacing, eye blinking during speech, avoidance of speaking, or dysfluency lasting >6 months. * **Management:** Reassure parents. Advise them not to interrupt, finish the child's sentences, or pressure the child to "speak slowly." * **Speech Milestones:** * 1 year: 1-3 words with meaning. * 2 years: 2-word phrases (Telegraphic speech). * 3 years: Uses pronouns and gives full name. * 4 years: Tells stories and uses past tense.

Q: What scale is used for assessing sexual maturity?

Tanners' scale. **Explanation:** The **Tanner Scale** (also known as Sexual Maturity Rating or SMR) is the gold standard clinical tool used to objective assess the progression of secondary sexual characteristics during puberty. It categorizes development into five stages (Stage 1 to 5), ranging from pre-adolescence to adult maturity, based on: * **Males:** External primary structures (penis and testes) and pubic hair. * **Females:** Breast development (Thelarche) and pubic hair. **Analysis of Incorrect Options:** * **Glasgow Coma Scale (GCS):** A neurological scale used to assess a patient's level of consciousness following a brain injury by evaluating eye, verbal, and motor responses. * **Goniometer:** An instrument used in orthopedics and physical therapy to measure the range of motion (ROM) of a joint. * **Moss Scale:** Used in psychology and nursing to assess communication or agitation levels (e.g., in dementia or ICU settings); it is not related to physical growth or puberty. **High-Yield Clinical Pearls for NEET-PG:** * **First sign of puberty:** In girls, it is **Thelarche** (breast budding); in boys, it is **Testicular enlargement** (>4 ml volume or >2.5 cm length). * **Precocious Puberty:** Development of secondary sexual characters before age 8 in girls and age 9 in boys. * **Delayed Puberty:** Absence of secondary sexual characters by age 13 in girls and age 14 in boys. * **Peak Height Velocity (PHV):** Occurs during Tanner Stage 2–3 in girls (pre-menarche) and Stage 3–4 in boys.

Q: At what age is head control typically achieved in infants?

5 months. **Explanation:** **Correct Answer: C (5 months)** In the sequence of gross motor development, head control is a critical milestone achieved through the gradual disappearance of the "head lag." While an infant begins to lift their head in a prone position earlier, **complete head control** (the ability to keep the head steady and in line with the trunk when the child is pulled to a sitting position) is typically achieved by **5 months** of age. At this stage, there is no head lag when the infant is pulled up. **Analysis of Incorrect Options:** * **A (3 months):** At this age, the infant can lift the head and chest up to 45–90 degrees while prone, but significant head lag persists when pulled to a sitting position. * **B (4 months):** This is a transitional phase. The head lag is minimal, and the infant can hold the head steady while being carried, but it is not yet fully stable in all maneuvers. * **D (6 months):** By 6 months, an infant has moved beyond simple head control and is typically beginning to sit with the support of their own hands (tripod position). **Clinical Pearls for NEET-PG:** * **Prone Position:** The first sign of head control is lifting the head 45° while prone (achieved at 2 months). * **Red Flag:** Failure to achieve head control by **6 months** is a significant developmental delay and warrants investigation for neurological or muscular disorders (e.g., Cerebral Palsy). * **Sequence:** Gross motor development follows a **Cephalo-caudal** direction (head control → sitting → standing → walking). * **Ventral Suspension:** At 4 weeks, the head droops; at 8 weeks, the head is held in the same plane as the rest of the body; at 12 weeks, the head is held above the plane of the body.

Q: A 5-year-old child is assessed to have a developmental age of one year. What is the developmental quotient?

20. ### Explanation The **Developmental Quotient (DQ)** is a numerical representation of a child’s developmental status relative to their chronological age. It is calculated using the following formula: **DQ = (Developmental Age / Chronological Age) × 100** In this case: * **Developmental Age (DA):** 1 year * **Chronological Age (CA):** 5 years * **Calculation:** (1 / 5) × 100 = **20** Therefore, the correct answer is **20 (Option C)**. #### Analysis of Incorrect Options: * **Option A (100):** This would be the DQ of a child whose developmental age matches their chronological age (e.g., a 5-year-old functioning at a 5-year-old level). * **Option B (80):** This would represent a mild delay. For a 5-year-old, this would mean a developmental age of 4 years [(4/5) × 100 = 80]. * **Option D (60):** This represents a significant delay. For a 5-year-old, this would mean a developmental age of 3 years [(3/5) × 100 = 60]. #### High-Yield Clinical Pearls for NEET-PG: 1. **Interpretation:** A DQ > 85 is considered normal; 70–85 is borderline; and < 70 is typically suggestive of developmental delay or intellectual disability. 2. **Domains of Development:** DQ can be calculated for specific domains: Gross Motor, Fine Motor, Language, and Personal-Social. 3. **Intelligence Quotient (IQ) vs. DQ:** While DQ measures developmental milestones in early childhood, IQ measures cognitive potential and is more stable after age 6. 4. **Screening Tools:** Common tools used in India to assess DQ include the **Trivandrum Developmental Screening Chart (TDSC)** and the **Denver Developmental Screening Test (DDST)**. For detailed assessment, the **Developmental Assessment Scales for Indian Infants (DASII)** is used.

Q: Epiphyseal enlargement is seen in which of the following conditions?

All of the above. **Explanation:** Epiphyseal enlargement (widening of the bone ends) is a clinical and radiological sign that can result from metabolic, inflammatory, or infectious processes affecting the growth plate and surrounding joint structures. 1. **Rickets:** This is the most common metabolic cause. Due to a deficiency in Vitamin D, calcium, or phosphorus, there is a failure of osteoid mineralization. This leads to an accumulation of non-mineralized hypertrophic chondrocytes, causing the growth plate to thicken and the metaphysis to widen (cupping, splaying, and fraying). Clinically, this manifests as **widened wrists** and **double malleoli**. 2. **Scurvy:** Although not listed as a primary option, it is a common differential. However, in the context of this question, **Septic Arthritis** is a critical inflammatory cause. 3. **Septic Arthritis:** Acute infection of the joint space leads to inflammatory exudate and increased intra-articular pressure. This causes soft tissue swelling and can lead to apparent epiphyseal enlargement on examination. If chronic or severe, the hyperemia associated with inflammation can cause premature enlargement of the epiphysis (overgrowth) due to increased blood flow to the growth plate. **Clinical Pearls for NEET-PG:** * **Rickets:** Look for "Wrist widening" as the earliest clinical sign. Radiologically, the distance between the epiphysis and metaphysis increases. * **Scurvy:** Characterized by "Ground glass" osteoporosis and Wimberger’s ring sign (dense rim around the epiphysis), but the epiphysis itself does not widen in the same hypertrophic manner as Rickets. * **Differential Diagnosis of Epiphyseal Enlargement:** Includes Rickets, Septic Arthritis, Juvenile Idiopathic Arthritis (JIA), and Hemophilia (due to chronic hemarthrosis causing hyperemia).

Question 1

A 9-year-old boy presents with growth retardation and propensity to hypoglycemia. Physical examination reveals short stature, micropenis, increased fat, and a high-pitched voice. The skeletal survey reveals a bone age of 5 years. Which of the following is the most appropriate diagnosis?

Accepted Answer

Growth hormone deficiency

Answer

Malabsorption

Answer

Adrenal tumor

Answer

Thyroxine deficiency

Question 2

Trisomy 21 is described as which of the following syndromes?

Accepted Answer

Down's syndrome

Answer

Turner syndrome

Answer

Klinefelter syndrome

Answer

Edward syndrome

Question 3

All are unique features of WHO growth charts 2006 EXCEPT:

Accepted Answer

The sample was collected from ten countries including India.

Answer

It establishes the breastfed infant as the normative growth model.

Answer

Includes new indicators such as skinfold thickness.

Answer

Reiterates that children grow similarly across the world.

Question 4

A neonate has a large, purplish, slightly raised lesion on the skin of the forehead near the temporal area. As the child grows, the lesion grows as well and becomes increasingly prominent. This lesion may be a component of which of the following syndromes or diseases?

Accepted Answer

Sturge-Weber syndrome

Answer

Buerger's disease

Answer

Milroy's disease

Answer

Osler-Weber-Rendu disease

Question 5

A normal child develops the ability to use 10 words with meaning at what age?

Accepted Answer

18 months

Answer

12 months

Answer

15 months

Answer

24 months

Question 6

At what age range does normal dysfluency of speech typically occur in a child?

Accepted Answer

2 and 4 years

Answer

4 and 6 years

Answer

6 and 8 years

Answer

8 and 10 years

Question 7

What scale is used for assessing sexual maturity?

Accepted Answer

Tanners' scale

Answer

Glasgow scale

Answer

Goniometer

Answer

Moss scale

Question 8

At what age is head control typically achieved in infants?

Accepted Answer

5 months

Answer

3 months

Answer

4 months

Answer

6 months

Question 9

A 5-year-old child is assessed to have a developmental age of one year. What is the developmental quotient?

Accepted Answer

20

Answer

100

Answer

80

Answer

60

Question 10

Epiphyseal enlargement is seen in which of the following conditions?

Accepted Answer

All of the above

Answer

Rickets

Answer

Rickets

Answer

Septic arthritis

Growth and Development — MCQs

Growth and Development — MCQs

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