Which of the following burn patterns is suggestive of child abuse?

Correct Answer: A

Rationale: A scald burn on the side of the face, neck, and shoulder is suggestive of non-accidental injury, often seen in child abuse cases.

Correct Answer: B

Rationale: Itching is the hallmark symptom of allergic conjunctivitis, caused by histamine release from mast cells in response to allergens.

Correct Answer: C

Rationale: Massive pleural effusion causes decreased tactile vocal fremitus due to fluid accumulation, which dampens sound transmission. Other findings include tracheal deviation, dullness to percussion, and potential infectious complications.

Correct Answer: C

Rationale: Salicylate poisoning leads to metabolic acidosis with a high anion gap due to the accumulation of organic acids, including lactate and ketoacids. It initially causes respiratory alkalosis, followed by metabolic acidosis.

Correct Answer: C

Rationale: IV calcium gluconate stabilizes cardiac membranes, reducing the risk of arrhythmias from hyperkalemia, without lowering potassium levels.