Timing of an innocent murmur is usually:

Correct Answer: A

Rationale: Innocent murmurs are typically ejection systolic murmurs due to normal blood flow turbulence in a structurally normal heart. They are soft, vibratory, and heard best over the left sternal border, increasing with fever or excitement.

Correct Answer: C

Rationale: Renal tubular acidosis typically causes normal anion gap metabolic acidosis rather than an increased anion gap.

Correct Answer: D

Rationale: Dexamethasone has been associated with an increased risk of pyloric stenosis in premature infants. The other drugs are not linked to this condition.

Correct Answer: D

Rationale: Acute stress reaction is a short-term psychological response rather than a long-term psychosocial impact. Loss of family members, separation from community, and lack of education are major long-term impacts of war on children.

Correct Answer: D

Rationale: Allergic rhinitis is not a common cause of allergic bronchopulmonary aspergillosis, unlike asthma, cystic fibrosis, COPD, and immunodeficiency.