A 6-year-old boy with basal ejection systolic murmur, systolic click, and evidence of right ventricular apex in plain CXR is suspected to have which congenital heart disease?

Correct Answer: A

Rationale: Pulmonary stenosis presents with an ejection systolic murmur, systolic click, and right ventricular hypertrophy on X-ray.

Correct Answer: D

Rationale: This is an anaphylactic reaction (a form of immunological shock) that occurs post-vaccination.

Correct Answer: D

Rationale: Respiratory syncytial virus (RSV) is the most common cause of bronchiolitis in infants, presenting with cough, tachypnea, wheezing, and respiratory distress. It spreads via respiratory droplets and is especially severe in premature and immunocompromised infants.

Correct Answer: D

Rationale: Primary nocturnal enuresis is generally not linked to emotional disorders but instead to factors like genetics, bladder capacity, or nighttime urine production.

Correct Answer: A

Rationale: Hypernatremic dehydration occurs when water loss exceeds sodium loss, leading to increased serum osmolality (>295 mOsm/L) and sodium levels (>145 mEq/L). This can result from inadequate fluid intake, excessive sweating, or osmotic diuresis.