In treatment of hypernatremia, the maximum accepted rate of drop of serum sodium per 24 hours?

Correct Answer: B

Rationale: The safe correction rate for hypernatremia is no more than 12 mmol/L per 24 hours to prevent cerebral edema caused by rapid osmotic shifts.

Correct Answer: C

Rationale: Persistent joint symptoms without migratory polyarthritis are less indicative of active RF, as RF typically causes transient, migratory joint involvement.

Correct Answer: D

Rationale: Nebulized adrenaline is commonly used in croup to reduce airway edema, improving airflow and reducing respiratory distress.

Correct Answer: A

Rationale: Preterm infants have underdeveloped lungs, and mechanical ventilation or high oxygen pressure can lead to alveolar rupture, causing air to accumulate in the pleural space (pneumothorax), leading to respiratory distress.

Correct Answer: A

Rationale: Breath-holding spells are often linked to iron deficiency anemia and typically resolve by age 5. They are not seizures or solely expressed as tonic movements.