🔥 Top 10 Most Repeated Respiratory System Questions (Pediatrics)

1. Acute Respiratory Failure

• Define, classify, causes, and management
• Modes of oxygen therapy / ventilation
  📌 Repeated: DNB June 2004, DNB June 2006, DNB June 2013

2. Acute Respiratory Distress Syndrome (ARDS)

• Definition, criteria, pathogenesis, ventilatory management
  📌 Repeated: DNB Dec 2008, DNB Dec 2009, DNB Dec 2024

3. Mechanical Ventilation in Children

• Modes (PCV vs VCV), indications, settings, HFOV
  📌 Repeated: DNB Dec 2008, DNB Dec 2020, DNB June 2022

4. Pulse Oximetry & ABG Interpretation

• Principles, limitations, clinical utility
  📌 Repeated: DNB June 1998, DNB June 2015

5. Ventilation–Perfusion (V/Q) Mismatch

• Definition and changes in pneumonia, ARDS, obstructive diseases
  📌 Repeated: DNB June 2011

6. Acute Stridor / Upper Airway Obstruction

• Causes, differential diagnosis, management (croup, epiglottitis)
  📌 Repeated MANY TIMES: DNB June 1993 → DNB Dec 2020, DCH Dec 2023

7. Acute Bronchiolitis

• Etiopathogenesis, clinical features, management
  📌 Repeated: DNB Dec 2010, DNB June 2019, DNB Dec 2022

8. Cystic Fibrosis

• Pathophysiology, diagnosis, management, newer drugs
  📌 Repeated: DNB June 2006 → DNB 2023, DCH Dec 2024

9. Empyema Thoracis

• Etiology, stages, management
  📌 Repeated: DNB June 2011, DNB June 2021

10. Oxygen Therapy & Delivery Systems

• Indications, devices (HFNC, CPAP), complications
  📌 Repeated: DNB 2004, DNB 2021, DCH June 2024

⭐ Ultra-High Yield Add-ons

These are also very frequently asked:

• Oxygen dissociation curve (DNB June 2018, DNB Dec 2020)
• Bronchopulmonary dysplasia (DNB June 2013, DNB 2023)
• Foreign body aspiration (DNB June 1993)

📊 Exam Trend Summary (Must-read insight)

• Critical care respiratory (ARDS, ventilation, respiratory failure) = MOST REPEATED
• Airway emergencies (stridor, bronchiolitis) = VERY HIGH YIELD
• Chronic lung diseases (CF, BPD) = Frequently repeated
• Investigations (ABG, pulse oximetry) = Short notes favorites