Growth and Development Practice Questions

Q: At what age does the transfer of one object to another hand happen?

7 months. ***7 months***- The transfer of an object from one hand to the other is a significant **fine motor milestone**, typically achieved between **6 and 8 months** of age, averaging around 7 months.- This milestone requires improved **bilateral coordination** and the ability to recognize that the object can be held by either hand, often coinciding with independent sitting.*4 months*- At **4 months**, infants generally begin reaching for objects deliberately and bringing them to their mouth using a primitive **palmar grasp**.- Transfer is not yet possible as the release mechanism and coordination between the two upper limbs are insufficiently developed.*9 months*- By **9 months**, infants are generally developing the **pincer grasp** (using the index finger and thumb) and possess well-established object transfer skills.- They move on to more complex manipulations, like banging two objects together or voluntarily releasing objects into a container.*12 months*- At **12 months**, fine motor skills are highly refined, allowing for precise actions such as stacking two blocks and using a mature **pincer grip** to pick up small crumbs.- Object transfer is fully developed and consolidated by this age, which is far beyond the initial stage of acquisition.

Q: What is the likely age of a child who can ride a tricycle, walk up stairs with alternate steps, but cannot hop?

3.5 years. ***Correct: 3.5 years*** - At **3.5 years**, a child typically achieves the milestone of **walking up stairs with alternate steps** (reciprocal stair climbing) - The ability to **ride a tricycle** is typically achieved by **3 years** - **Hopping on one foot** is a milestone achieved around **4 years**, so a child at 3.5 years would not yet be able to hop - The combination of these milestones (can ride tricycle, can do alternate steps, cannot hop) places the child at approximately **3.5 years** *Incorrect: 4.5 years and 5.5 years* - By 4.5-5.5 years, children should have already achieved the ability to **hop on one foot** (typically by 4 years) - These ages are too advanced for a child who cannot yet hop *Incorrect: 2.5 years* - At 2.5 years, most children walk up stairs with **both feet on each step** rather than using alternate steps - **Reciprocal stair climbing** (alternate steps) typically develops around **3-3.5 years** - This age is too young for the described skill set

Q: A 6-year-old child is brought for complaints of short stature. His height is comparable with his parent's height and his bone age corresponds to his chronological age. What is the likely diagnosis?

Familial short stature. ***Familial short stature***- The short stature is proportional, and the growth velocity is usually normal, with the child tracking below the 3rd percentile but parallel to the normal curve.- Crucially, the **bone age corresponds to the chronological age**, meaning the skeletal maturation rate is normal, and they have an adult height potential consistent with their genetic background.*Constitutional delay*- This condition is characterized by a **delayed bone age** (e.g., bone age is 4 years in a 6-year-old child), which contradicts the case findings.- These children often have delayed puberty but will eventually reach a normal adult height, simply having a late **growth spurt**.*Undernutrition*- Chronic severe undernutrition causes short stature, often presenting with features like **wasting or stunting** and usually **delayed bone maturation**.- While it is a cause of growth failure, the history of height correlating with parents and normal bone age makes primary undernutrition less likely.*Growth hormone deficiency*- GH deficiency typically results in a **severely reduced growth velocity** and often significantly **delayed bone age**.- The pattern of growth velocity and height is typically inconsistent with the mid-parental height, unlike in familial short stature.

Q: Gonadal growth corresponds with _____.

Skeletal system. ***Skeletal system*** - **Gonadal growth** follows the Genital growth curve (Scammon's curves), characterized by minimal pre-pubertal growth and dramatic acceleration during **puberty** (ages 12-18). - The **skeletal system** follows the General growth curve, which similarly exhibits a significant **pubertal growth spurt** coinciding with the surge in sex hormones. - Both gonadal maturation and skeletal growth during puberty are driven by **sex steroids** (estrogen and testosterone), making their growth patterns temporally aligned and hormonally interdependent. - The timing of peak skeletal growth velocity (PHV) corresponds closely with the rapid gonadal development during **adolescence**. *Brain* - The **brain** follows the Neural growth curve, which shows rapid growth in **early childhood** (reaching ~90% of adult size by age 6 years) and then plateaus. - This pattern is **opposite** to gonadal growth, which remains relatively dormant in childhood and accelerates only during puberty. - Neural and Genital curves are the most divergent among Scammon's four growth curves. *Lymphoid growth* - **Lymphoid tissue** (thymus, lymph nodes, tonsils) follows a unique curve with rapid early growth, reaching peak size (>100% adult size) by age **10-12 years**, then involuting during puberty. - This pattern of early hypertrophy and pubertal regression is **inverse** to gonadal development. *Dental growth* - **Dental eruption** follows a predictable, age-specific schedule related to the General growth pattern and craniofacial bone development. - While influenced by overall maturation, dental development does not exhibit the characteristic hormone-dependent **pubertal acceleration** seen in gonadal growth.

Q: A mother is concerned about the bowing of legs of her child. Which tests should be performed to label it as physiological genu varum?

X-ray wrist, cover-up test, urine calcium and SAP. ***X-ray wrist, cover-up test, urine calcium and SAP*** - An **X-ray of the wrist** is used to assess bone age and look for metaphyseal changes suggestive of rickets, which would rule out physiological genu varum. - The **cover-up test** (specifically to evaluate for Blount disease) helps differentiate physiological bowing from pathological bowing, while **urine calcium and serum alkaline phosphatase (SAP)** are used to rule out nutritional rickets or other metabolic bone disorders. *X-ray wrist, urine hydroxyproline, urine calcium and SAP* - While X-ray wrist, urine calcium, and SAP are relevant, **urine hydroxyproline** is primarily used as a marker for bone turnover and collagen degradation and is not a primary diagnostic test for distinguishing physiological genu varum. - The inclusion of **urine hydroxyproline** makes this option less precise for the direct diagnosis of physiological genu varum compared to other tests. *X-ray wrist, urine aminoaciduria* - An **X-ray of the wrist** is appropriate, but **urine aminoaciduria** is a marker for certain metabolic disorders affecting renal reabsorption or amino acid metabolism, not directly for ruling out common causes of pathological bowing or confirming physiological genu varum. - This option lacks tests that specifically screen for metabolic bone diseases like rickets, which are crucial differentiators. *X-ray wrist, urinary calcium* - While both parameters are relevant, this option is **incomplete** as it misses important diagnostic tools. - **Serum alkaline phosphatase (SAP)** is crucial for evaluating bone turnover and rickets, and a specific clinical test like the **cover-up test** or examination for other signs of Blount disease is necessary for differentiating physiological bowing.

Q: Which structure is most commonly affected in rickets?

C. ***C (Physis/Growth Plate)*** - **Rickets** is a metabolic disorder characterized by inadequate mineralization of growing bones, most commonly affecting the **physis (growth plate)** of long bones - The growth plate is the cartilaginous area between the epiphysis and metaphysis where active bone growth occurs - Defective mineralization at this site leads to widening of the growth plate and characteristic skeletal deformities - **Reference:** O. P Ghai Textbook of Pediatrics, 8th Ed, page 113 *A (Epiphysis)* - The epiphysis is the bony section at the end of a long bone - While mineralization can be affected, it is not the **primary site** of pathology in rickets - The epiphysis and physis are anatomically distinct structures *B (Diaphysis)* - The diaphysis is the shaft of long bones - Though cortical bone can show changes in rickets, the diaphysis is not the **most commonly affected** area - The actively growing physis shows more pronounced changes *D (Metaphysis)* - The metaphysis is adjacent to the growth plate and can show radiological changes (cupping, fraying) - However, the **primary pathology** originates at the physis itself - Metaphyseal changes are secondary to physeal involvement

Q: The picture depicts Rocker bottom feet. This finding is classically associated with which chromosomal abnormality?

Edward syndrome. ***Edward syndrome*** - **Rocker-bottom feet** are a classic skeletal anomaly observed in infants with **Edward syndrome (trisomy 18)**. - Other distinctive features of Edward syndrome include **micrognathia**, prominent occiput, and **overlapping fingers**. *Down syndrome* - Characterized by a **single palmar crease**, **upslanting palpebral fissures**, and a flattened facial profile. - **Rocker-bottom feet** are not typically associated with Down syndrome. *Patau syndrome* - Associated with severe malformations including **microophthalmia**, **cleft lip/palate**, **polydactyly**, and central nervous system anomalies. - While foot anomalies can occur, **rocker-bottom feet** are less characteristic compared to Edward syndrome. *Turner syndrome* - This is a **monosomy X (45, XO)** condition primarily affecting females. - Key features include **short stature**, **webbed neck**, and **ovarian dysgenesis**, not rocker-bottom feet.

Q: Ear lobe creases in a child are commonly associated with which disorder that also presents with macroglossia and macrosomia?

Beckwith-Wiedemann syndrome. ***Beckwith-Wiedemann syndrome*** - **Beckwith-Wiedemann syndrome** is characterized by conditions such as **macrosomia** (large body size), **macroglossia** (enlarged tongue), **visceromegaly**, and **ear lobe creases** or pits. - It is an overgrowth disorder often associated with an increased risk of certain childhood cancers like **Wilms tumor** and hepatoblastoma. *Down syndrome* - **Down syndrome** (Trisomy 21) presents with distinct facial features like a **flat nasal bridge**, **epicanthal folds**, and a single palmar crease, but **ear lobe creases** are not a primary characteristic. - While **macroglossia** can be seen, **macrosomia** is generally not a feature; instead, individuals with Down syndrome often have growth delays. *Turner syndrome* - **Turner syndrome** (XO karyotype) is characterized by features such as **short stature**, a **webbed neck**, shield chest, and **low-set ears**, but not typically ear lobe creases or macroglossia. - Affected individuals are phenotypically female and experience **gonadal dysgenesis**. *Noonan syndrome* - **Noonan syndrome** shares some features with Turner syndrome, including **short stature**, **webbed neck**, and **pectus excavatum**, but also presents with distinct cardiac defects. - While it can involve various facial dysmorphia, **ear lobe creases**, **macroglossia**, and **macrosomia** are not typically defining characteristics.

Q: A child presents with polydactyly and obesity. Which syndrome is most likely associated with these clinical findings?

Laurence-Moon-Bardet-Biedl syndrome. ***Laurence-Moon-Bardet-Biedl syndrome*** - This syndrome often presents with **polydactyly**, **obesity**, **retinal degeneration**, learning disabilities, and renal abnormalities. - The combination of polydactyly and obesity in a child points strongly toward this diagnosis. *Apert syndrome* - Characterized by **craniosynostosis** (premature fusion of skull bones) and **syndactyly** (fusion of fingers or toes), not typically polydactyly. - Obesity is not a primary feature of Apert syndrome. *Trisomy 21* - Also known as **Down syndrome**, it typically presents with characteristic facial features, intellectual disability, and often congenital heart defects. - While some hand anomalies can occur, **polydactyly** and **obesity** are not typical primary diagnostic features. *Fetal hydantoin syndrome* - Caused by exposure to **phenytoin** during pregnancy, leading to features like broad nasal bridge, cleft lip/palate, developmental delay, and hypoplastic fingernails. - **Polydactyly** and **obesity** are not characteristic features of this syndrome.

Q: The image shows presence of:

Single palmar crease. ***Single palmar crease*** - The image clearly shows a **single transverse palmar crease** (simian crease), which is a **dermatoglyphic feature** where the normal two palmar creases are replaced by one continuous crease across the palm. - This finding is present in approximately **50% of individuals with Down syndrome** and is considered a significant clinical marker, though it can also occur in about 5% of the general population. *Macroglossia* - **Macroglossia** (enlarged tongue) is a common feature of **Down syndrome** but involves the oral cavity and tongue size. - The image shows only the **palm of the hand**, making it impossible to assess for macroglossia, which would require visualization of the oral structures. *Brushfield spots* - **Brushfield spots** are white or light-colored spots around the **periphery of the iris** and are characteristic of Down syndrome. - These spots are **ocular findings** that would require examination of the eyes, which are not visible in this palm-focused image. *Umbilical hernia* - **Umbilical hernia** is a protrusion of abdominal contents through the **umbilical ring** and is more common in children with Down syndrome. - This is an **abdominal finding** that would require visualization of the umbilical area, which is not shown in this image of the palm.

Question 1

At what age does the transfer of one object to another hand happen?

Accepted Answer

7 months

Answer

4 months

Answer

12 months

Answer

9 months

Question 2

What is the likely age of a child who can ride a tricycle, walk up stairs with alternate steps, but cannot hop?

Accepted Answer

3.5 years

Answer

4.5 years

Answer

5.5 years

Answer

2.5 years

Question 3

A 6-year-old child is brought for complaints of short stature. His height is comparable with his parent's height and his bone age corresponds to his chronological age. What is the likely diagnosis?

Accepted Answer

Familial short stature

Answer

Constitutional delay

Answer

Undernutrition

Answer

Growth hormone deficiency

Question 4

Gonadal growth corresponds with _____.

Accepted Answer

Skeletal system

Answer

Dental growth

Answer

Lymphoid growth

Answer

Brain

Question 5

A mother is concerned about the bowing of legs of her child. Which tests should be performed to label it as physiological genu varum?

Accepted Answer

X-ray wrist, cover-up test, urine calcium and SAP

Answer

X-ray wrist, urine hydroxyproline, urine calcium and SAP

Answer

X-ray wrist, urine aminoaciduria

Answer

X-ray wrist, urinary calcium

Question 6

Which structure is most commonly affected in rickets?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 7

The picture depicts Rocker bottom feet. This finding is classically associated with which chromosomal abnormality?

Accepted Answer

Edward syndrome

Answer

Down syndrome

Answer

Patau syndrome

Answer

Turner syndrome

Question 8

Ear lobe creases in a child are commonly associated with which disorder that also presents with macroglossia and macrosomia?

Accepted Answer

Beckwith-Wiedemann syndrome

Answer

Down syndrome

Answer

Turner syndrome

Answer

Noonan syndrome

Question 9

A child presents with polydactyly and obesity. Which syndrome is most likely associated with these clinical findings?

Accepted Answer

Laurence-Moon-Bardet-Biedl syndrome

Answer

Apert syndrome

Answer

Trisomy 21

Answer

Fetal hydantoin syndrome

Question 10

The image shows presence of:

Accepted Answer

Single palmar crease

Answer

Macroglossia

Answer

Brushfield spots

Answer

Umbilical hernia

Growth and Development — MCQs

Growth and Development — MCQs

On this page

Practice by Chapter

Want unlimited practice?