A 1.5-month-old girl, the first child of unrelated parents was referred to our hospital with icterus and edema. She is exclusively breast-fed, she had acholic stools. She was hospitalized for further evaluation. The baby's blood group is A +ve, the mother's blood group is O +ve. What is the most probable diagnosis?

Correct Answer: C

Rationale: Neonatal cholestasis is characterized by prolonged jaundice, acholic stools, and direct hyperbilirubinemia. Causes include biliary atresia, metabolic disorders, and genetic syndromes. ABO incompatibility typically causes hemolysis and indirect hyperbilirubinemia, not acholic stools.

Correct Answer: C

Rationale: Digitalis is not used in resuscitation because it has no role in acute life support and may worsen arrhythmias in critical situations.

Correct Answer: D

Rationale: Relapsing polychondritis causes cartilage inflammation, joint pain, and hearing loss, making 'All of the above' the correct answer.

Correct Answer: C

Rationale: Rescue breathing should be prioritized in drowning cases to restore oxygenation before considering other interventions.

Correct Answer: B

Rationale: Oxygen saturation (SpOâ‚‚) refers to the percentage of hemoglobin molecules bound to oxygen. A saturation of 90% indicates that 90% of hemoglobin is oxygenated, which corresponds to a PaOâ‚‚ of around 60 mmHg, suggesting mild hypoxemia.

Correct Answer: C

Rationale: Bone marrow infiltration is rare in Hodgkin's lymphoma but common in Non-Hodgkin's lymphoma.

Correct Answer: C

Rationale: The prevalence of mental health issues in childhood is generally estimated to be around 30%. This figure reflects the significant number of children who experience some form of mental health challenge during their development.

Correct Answer: B

Rationale: Endotracheal tube size for an adolescent (16 years) is typically 8.0 mm. A rough estimate is (Age/4) + 3.5 for uncuffed and (Age/4) + 3 for cuffed tubes.

Correct Answer: B

Rationale: The Holliday-Segar method suggests 100 mL/kg for the first 10 kg and 50 mL/kg for the next 10 kg, totaling 1500 mL for a 20 kg child.