Growth and Development — MCQs

Growth and Development Indian Medical PG Practice Questions and MCQs

Question 711: Which of the following milestones is not typically achieved by a 10-month-old child?

A. Waving bye-bye
B. Pincer grasp
C. Standing without support (Correct Answer)
D. Plays a peek-a-boo game

Explanation: ***Standing without support*** - While a 10-month-old child may pull themselves to stand and cruise along furniture, **standing without support** is typically achieved between **11 to 14 months** of age. - This milestone requires greater balance and strength than is usually present at 10 months. *Pincer grasp* - A 10-month-old is generally developing a **pincer grasp**, allowing them to pick up small objects using their thumb and forefinger. - This fine motor skill is usually mastered around **9 to 12 months**. *Waving bye-bye* - **Waving bye-bye** is a common social gesture that many 10-month-old babies start to imitate. - This milestone indicates developing social interaction and understanding of simple commands. *Plays a peek-a-boo game* - Engaging in **peek-a-boo** demonstrates emerging **object permanence** and social reciprocity, which are typically present in a 10-month-old. - This interactive play is a sign of cognitive and social development at this age.

Question 712: Growth of head circumference in the 1st 3 months of life is

A. 2 cm
B. 3 cm
C. 5 cm (Correct Answer)
D. 10 cm

Explanation: ***5 cm*** - Head circumference typically increases by **approximately 2 cm per month** during the first 3 months of life, leading to a total increase of about **5-6 cm** over this period. - This rapid growth reflects the significant **brain development** occurring in infancy. *2 cm* - An increase of only 2 cm over three months is **substantially less than expected** for normal infant head growth. - Such slow growth could indicate underlying issues like **microcephaly** or **impaired brain development**. *3 cm* - A 3 cm increase is also **below the average growth rate** for head circumference in the first three months. - While not as severe as 2 cm, it still suggests growth that is **slower than typical**. *10 cm* - An increase of 10 cm in the first three months would be considered **excessively rapid head growth**. - This could be a sign of conditions like **hydrocephalus** or other neurological abnormalities that cause an abnormal accumulation of cerebrospinal fluid.

Question 713: Which of the following conditions is NOT associated with infantile body proportions?

A. Achondroplasia
B. Cretinism
C. Klinefelter's syndrome (Correct Answer)
D. Hypothyroidism

Explanation: ***Klinefelter's syndrome*** - While it affects growth and development, Klinefelter's syndrome typically leads to **tall stature** with disproportionately **long limbs** in adolescence and adulthood, which is the opposite of infantile body proportions. - Individuals with Klinefelter's syndrome develop **eunuchoid proportions**, meaning the arm span is greater than the height, and the upper segment (crown to pubis) is less than the lower segment (pubis to sole). *Achondroplasia* - This condition is characterized by **short-limbed dwarfism**, resulting in a relatively long trunk and short extremities, mimicking or perpetuating infantile body proportions. - The **rhizomelic shortening** (proximal limb segments affected more) in achondroplasia means the ratio of trunk length to limb length is more like an infant's. *Hypothyroidism* - **Untreated congenital hypothyroidism** (cretinism) can lead to **skeletal maturation delays** and **short stature** with infantile body proportions, characterized by a relatively large head and trunk compared to limbs. - The delayed skeletal growth results in a **disproportionate physique**, where the limbs do not lengthen appropriately. *Cretinism* - This term specifically refers to **untreated congenital hypothyroidism**, which profoundly affects growth and development, leading to **dwarfism** and retention of **infantile body proportions**. - Features include a relatively short stature, a large head, and short limbs, reflecting a failure of normal pubertal growth spurt and skeletal maturation.

Question 714: Which of the following is the current best reference for growth monitoring in children?

A. WHO (Correct Answer)
B. NCHS
C. CDC
D. IAP

Explanation: ***WHO*** - The **World Health Organization (WHO) growth standards** are the current best reference for growth monitoring in children globally and in India. - **IAP (Indian Academy of Pediatrics) recommends WHO growth standards** for children **0-5 years** as they represent optimal growth under ideal environmental and health conditions. - WHO charts are **prescriptive** (how children should grow) rather than descriptive, based on a multi-center study of **healthy, breastfed children** from diverse populations. - These charts are endorsed by **IAP, CDC, and pediatric bodies worldwide** as the gold standard for growth monitoring. *IAP* - The **Indian Academy of Pediatrics (IAP) 2015 growth charts** are recommended specifically for Indian children aged **5-18 years**. - While important for **regional population-specific data**, IAP itself recommends **WHO charts for children under 5 years**. - IAP charts address genetic and environmental variations in the Indian population for older children. *NCHS* - The **National Center for Health Statistics (NCHS) growth charts** (1977) are **outdated** and have been largely replaced. - Even in the US, these have been superseded by **WHO charts for children 0-2 years** and updated CDC charts for older children. - Not the current standard of care. *CDC* - The **CDC growth charts** (2000) are used in the United States for children **2-20 years**. - However, even CDC now **recommends WHO growth standards for 0-2 years**. - Not specifically recommended for Indian population.

Question 715: Social smile is attained at what age?

A. 2 months (Correct Answer)
B. 5 months
C. 9 months
D. 1 year

Explanation: ***2 months*** - The **social smile** is a significant developmental milestone that typically emerges around **2 months** of age. - At this age, infants begin to smile in response to human faces and voices, indicating early social engagement. *5 months* - By **5 months**, infants typically display more complex social behaviors, such as beginning to **recognize familiar faces** and interacting more deliberately. - While they will still smile socially, this milestone is achieved earlier than 5 months. *9 months* - Around **9 months**, infants often develop **stranger anxiety** and more specific attachment behaviors. - Their social smiling is well-established, but the initial milestone occurs much earlier. *1 year* - At **1 year of age**, infants are often walking, saying their first words, and engaging in more sophisticated social play through **imitation**. - The social smile is a well-integrated part of their communicative repertoire by this point, not a new development.

Question 716: In the context of child development, arrange the following milestones in the correct order of their attainment: I. Build tower of 4 cubes II. Make simple sentences III. Drawing a circle IV. Drawing a rectangle.

A. A. II → III → IV → I
B. B. I → II → III → IV (Correct Answer)
C. C. II → I → III → IV
D. D. I → II → IV → III

Explanation: ***B. I → II → III → IV*** - This sequence correctly reflects typical developmental milestones: **building a tower of 4 cubes** typically occurs around 2 years, followed by **making simple sentences** around 2.5-3 years, then **drawing a circle** around 3 years, and finally **drawing a rectangle** around 4-5 years. - Understanding the approximate age of attainment for these milestones is crucial for assessing **normal child development** and identifying potential delays. *A. II → III → IV → I* - This order places **making simple sentences** and **drawing skills** before the **building of a 4-cube tower**, which is generally incorrect as fine motor coordination for tower building precedes complex language and drawing. - Young children develop gross and fine motor skills (like stacking) before more intricate cognitive and artistic skills. *C. II → I → III → IV* - This sequence incorrectly places **making simple sentences** as the earliest milestone among the given options, and the subsequent order for drawing skills is also out of sync with typical development. - **Sentence formation** requires more advanced cognitive and linguistic development than initial fine motor tasks. *D. I → II → IV → III* - This option incorrectly places **drawing a rectangle** before **drawing a circle**. Children typically master drawing a circle first, as it is a less complex shape to replicate than a rectangle with its angles and straight lines. - The ability to draw a **circle** is generally achieved around 3 years, while drawing a **rectangle** is a later developmental milestone, usually around 4-5 years.

Question 717: At what age do children typically achieve the milestone of climbing steps with alternate feet?

A. By 2 years
B. By 3 years (Correct Answer)
C. By 4 years
D. By 5 years

Explanation: ***By 3 years*** - Most children develop the ability to climb steps using **alternate feet** between the ages of 2 and 3 years, consolidating their **motor coordination** and balance. - This milestone signifies significant progress in **gross motor development**, involving the integration of various muscle groups for complex movements. *By 2 years* - Children around 2 years old can typically climb steps, but they often use a **leading foot** and drag the other, rather than alternating feet efficiently. - While they have developed basic stair negotiation skills, the refined coordination for alternating feet is usually still emerging. *By 4 years* - By 4 years of age, children generally demonstrate very good **balance** and coordination, including the ability to run, jump, and climb stairs with ease and fluidity. - Achieving alternating feet on stairs by this age is well within the expected range, but it's usually mastered earlier. *By 5 years* - Children aged 5 years are typically proficient in many complex motor skills, including running fast, skipping, and even performing more intricate actions like riding a scooter or tricycle. - Mastering alternate feet on stairs by this age is certainly expected, but it would have been achieved much earlier.

Question 718: Which of the following is true about the tonic neck reflex?

A. Extension of the arm on the contralateral side, flexion of the arm on the ipsilateral side
B. Extension of the arms on both sides
C. Flexion of the arms on both sides
D. Extension of the arm on the ipsilateral side, flexion of the arm on the contralateral side (Correct Answer)

Explanation: ***Extension of the arm on the ipsilateral side, flexion of the arm on the contralateral side*** - The **asymmetric tonic neck reflex (ATNR)** is characterized by **extension of the arm and leg on the side the head is turned toward (ipsilateral)** and **flexion of the arm and leg on the opposite side (contralateral)**. - This reflex is normal in infants until about 4-6 months of age and is thought to play a role in the development of eye-hand coordination. *Extension of the arm on the contralateral side, flexion of the arm on the ipsilateral side* - This describes the **opposite** of the typical ATNR response. - An atypical or reversed response is not characteristic of a normal tonic neck reflex. *Extension of the arms on both sides* - This response is not characteristic of the ATNR, which is inherently **asymmetric**. - Symmetrical extension of both arms is sometimes seen in other primitive reflexes, but not the tonic neck reflex. *Flexion of the arms on both sides* - This response is also not typical of the ATNR, which is an **asymmetric reflex**. - Symmetrical flexion of both arms does not align with the characteristic "fencer's pose" associated with the ATNR.

Question 719: Which Tanner stage represents the first sign of puberty in females?

A. Tanner stage I
B. Tanner stage II (Correct Answer)
C. Tanner stage IV
D. Tanner stage III

Explanation: ***Tanner stage II*** - This stage marks the **first physical signs of puberty** in females, typically characterized by **breast budding (thelarche)** and, often, the appearance of sparse pubic hair. - The average age of onset for Tanner stage II in females is around **10-11 years old**. *Tanner stage I* - This stage represents the **prepubertal state**, where there are no visible secondary sexual characteristics. - It is the stage immediately **before the onset of puberty**. *Tanner stage IV* - This stage signifies significant progression in pubertal development, with **areola and nipple forming a secondary mound** above the breast and denser, adult-like pubic hair. - It occurs **later in puberty**, well after the initial signs. *Tanner stage III* - In this stage, breasts show **further enlargement and elevation**, and pubic hair becomes darker, coarser, and more curled, spreading over the mons pubis. - This stage represents an **intermediate phase** in pubertal development, following the initial signs.

Question 720: Which of the following developmental milestones is typically not achieved by a 10-month-old child?

A. Standing with support
B. Two words with meaning (Correct Answer)
C. Pincer grasp
D. Walking with support

Explanation: ***Two words with meaning*** - While a 10-month-old may babble and use **single words** like "mama" or "dada" with meaning, consistently using **two words together meaningfully** is a milestone typically achieved closer to 12-18 months. - This skill requires more complex cognitive and linguistic development than usually present at 10 months. *Standing with support* - Many 10-month-olds are able to **pull themselves to stand** and stand with support, often by holding onto furniture. - This is a common and expected gross motor milestone for this age. *Pincer grasp* - The **pincer grasp**, picking up small objects precisely with the thumb and forefinger, is often well-established by 10 months. - This fine motor skill is crucial for self-feeding and exploring small objects. *Walking with support* - Many infants at 10 months are beginning to **cruise** (walk while holding onto furniture) or take a few steps while holding an adult's hands. - This shows developing balance and leg strength as a precursor to independent walking.

Practice by Chapter

Normal Growth Parameters

Practice Questions

Developmental Milestones

Practice Questions

Puberty and Adolescent Development

Practice Questions

Growth Disorders

Practice Questions

Failure to Thrive

Practice Questions

Developmental Screening and Assessment

Practice Questions

Developmental Delays

Practice Questions

Growth Charts and Monitoring

Practice Questions

Short Stature

Practice Questions

Tall Stature

Practice Questions

Precocious and Delayed Puberty

Practice Questions

Psychosocial Development

Practice Questions

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