UPSC-CMS 2010 - Pediatrics PYQs Practice Questions

Q: A four-month-old baby has cleft lip and palate. How would you manage the baby?

Immediate repair of the lip. ***Immediate repair of the lip*** - A **cleft lip** is typically repaired around **3-6 months of age** ("Rule of 10s": 10 weeks old, 10 pounds weight, 10 g/dL hemoglobin), which aligns with the baby's age of four months, to facilitate feeding and encourage normal facial bone and dental development. - Early lip closure also aids in better **feeding**, improved **speech development**, and addressing initial aesthetic concerns. *Delayed repair of the lip and palate until pre-school age* - Delaying **lip repair** until pre-school age would negatively impact feeding, speech development, and psychosocial well-being, as well as potentially affecting facial growth. - **Palate repair** is generally performed between **9-18 months of age** to optimize speech development, not pre-school age. *Immediate repair of the lip and palate* - While **lip repair** can be done relatively early, **palate repair** is usually delayed until later (9-18 months) to allow for facial growth and to optimize speech outcomes. - Performing both immediately might pose greater surgical risks and interfere with the natural growth of the maxilla and skull base. *Delayed repair of the lip and palate until 2 years* - Delaying **lip repair** until 2 years is too late, as it significantly impacts feeding, speech development, and facial aesthetics during critical developmental periods. - While some **palate repairs** may occur up to 18 months, delaying beyond this, particularly for the lip, is not optimal for function or aesthetics. [Practice more Pediatrics PYQs on OnCourse]

Q: Which one of the following is a cyanotic congenital heart disease?

Tetralogy of Fallot. ***Tetralogy of Fallot*** - This condition is characterized by **four distinct heart defects** that result in **right-to-left shunting** of unoxygenated blood into the systemic circulation, leading to cyanosis. - The four defects are **ventricular septal defect**, **pulmonary stenosis**, **overriding aorta**, and **right ventricular hypertrophy**. *Patent ductus arteriosus* - This is an **acyanotic heart defect** where there is a persistent opening between the aorta and pulmonary artery, leading to a **left-to-right shunt**, increasing pulmonary blood flow. - It does not typically cause cyanosis unless there is severe pulmonary hypertension leading to shunt reversal (Eisenmenger syndrome). *Ventricular septal defect* - This is also primarily an **acyanotic heart defect** where a hole exists between the ventricles, causing a **left-to-right shunt** of oxygenated blood. - Cyanosis would only occur in severe cases with significant pulmonary hypertension and shunt reversal (Eisenmenger syndrome). *Atrial septal defect* - This is an **acyanotic heart defect** involving an opening between the atria, usually resulting in a **left-to-right shunt** of oxygenated blood into the right atrium. - It rarely causes cyanosis unless there are significant complications like pulmonary hypertension with shunt reversal. [Practice more Pediatrics PYQs on OnCourse]

Q: What is the most common cause of gastric outlet obstruction in a 4-week-old baby?

Congenital hypertrophic pyloric stenosis. ***Congenital hypertrophic pyloric stenosis*** - This condition involves thickening of the **pyloric muscle**, leading to a narrowed outflow tract from the stomach. - It classically presents in infants around **2-6 weeks of age** with **projectile, non-bilious vomiting** and a palpable **olive-shaped mass** in the epigastrium. *Foreign body* - While possible, foreign body ingestion is an **uncommon cause** of gastric outlet obstruction in a 4-week-old infant. - Infants within this age range are typically **not mobile** or exploring their environment in a way that would lead to frequent foreign body ingestion. *Annular pancreas* - This is a rare congenital anomaly where pancreatic tissue completely encircles the **duodenum**, causing obstruction. - Although it can cause gastric outlet obstruction, it is **less common** than pyloric stenosis as the cause in this age group. *Duodenal atresia* - This condition is a complete blockage of the duodenum and typically presents with **bilious vomiting** within the **first 24-48 hours of life**. - The onset of symptoms in a 4-week-old, especially with non-bilious vomiting, makes duodenal atresia a less likely diagnosis. [Practice more Pediatrics PYQs on OnCourse]

Q: A child of 2 years having a respiratory rate of 46 per minute shall be classified by a health worker as

pneumonia. ***Correct: Pneumonia*** - A respiratory rate of **46 breaths per minute** in a 2-year-old child falls within the criteria for **fast breathing**. According to World Health Organization (WHO) IMCI guidelines, fast breathing is defined as a respiratory rate ≥ 50 breaths/minute for children aged 2 months to 12 months, and **≥ 40 breaths/minute for children aged 12 months to 5 years**. - Fast breathing alone (without chest indrawing or danger signs) is the **key clinical sign** for classifying a child with cough or difficulty breathing as having **pneumonia**. - This is based on the **WHO IMCI classification** used by health workers for management of childhood illness. *Incorrect: No pneumonia, cough or cold* - This classification would be made if the child's respiratory rate was **within the normal range** for their age (< 40 breaths per minute for age 1-5 years) and if there were no other signs of pneumonia or severe disease. - A respiratory rate of 46 breaths per minute in a 2-year-old is **above the normal limit** and meets the criteria for fast breathing. *Incorrect: Severe pneumonia* - Severe pneumonia is classified by the presence of **chest indrawing** in addition to cough or difficult breathing, without danger signs. - While the child has fast breathing, the question does not mention **chest indrawing**, which is required for this classification. *Incorrect: Very severe disease* - Very severe disease is classified when there are **danger signs** present: inability to drink or breastfeed, persistent vomiting, convulsions, lethargy or unconsciousness, or stridor in a calm child. - The question only mentions elevated respiratory rate without any **danger signs**, so this classification does not apply. [Practice more Pediatrics PYQs on OnCourse]

Question 1

A four-month-old baby has cleft lip and palate. How would you manage the baby?

Accepted Answer

Immediate repair of the lip

Answer

Delayed repair of the lip and palate until pre-school age

Answer

Immediate repair of the lip and palate

Answer

Delayed repair of the lip and palate until 2 years

Question 2

Which one of the following is a cyanotic congenital heart disease?

Accepted Answer

Tetralogy of Fallot

Answer

Patent ductus arteriosus

Answer

Ventricular septal defect

Answer

Atrial septal defect

Question 3

What is the most common cause of gastric outlet obstruction in a 4-week-old baby?

Accepted Answer

Congenital hypertrophic pyloric stenosis

Answer

Foreign body

Answer

Annular pancreas

Answer

Duodenal atresia

Question 4

A child of 2 years having a respiratory rate of 46 per minute shall be classified by a health worker as

Accepted Answer

pneumonia

Answer

no pneumonia, cough or cold

Answer

severe pneumonia

Answer

very severe disease

UPSC-CMS 2010 — Pediatrics