Depth of chest compression in CPR?

Correct Answer: B

Rationale: For children, the recommended depth of chest compressions is about 4-5 cm (one-third the anteroposterior diameter of the chest).

Correct Answer: A

Rationale: Dermatographism is the most frequent type of physical urticaria, occurring in response to skin pressure or scratching.

Correct Answer: C

Rationale: Shellfish allergies often develop later in life, unlike milk and egg allergies, which usually appear in infancy.

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: D

Rationale: Kawasaki disease is diagnosed based on fever for ≥5 days and at least four of five criteria, including bilateral bulbar conjunctival injection without exudate.

Correct Answer: B

Rationale: Anaphylactoid purpura (Henoch-Schanlein purpura) is the most common cause of non-thrombocytopenic purpura in children, characterized by a small-vessel vasculitis leading to purpuric rash, arthritis, and renal involvement.

Correct Answer: C

Rationale: The Look-Listen-Feel method is used to assess if a patient is breathing by observing chest movement, listening for breath sounds, and feeling for airflow.

Correct Answer: B

Rationale: Inhaled short-acting beta-agonists (SABAs) are the first-line treatment for acute asthma exacerbations, providing rapid bronchodilation.

Correct Answer: C

Rationale: Smokeless tobacco use is strongly linked to cancers of the oral cavity and esophagus.