Steeple sign is characteristic for:

Correct Answer: B

Rationale: The steeple sign, seen on X-ray, is a hallmark of viral croup, indicating subglottic airway narrowing.

Correct Answer: D

Rationale: Innocent murmurs are benign and require no restriction of activity, antibiotic prophylaxis, or serial echocardiography unless symptoms suggest structural heart disease.

Correct Answer: B

Rationale: Low-dose inhaled corticosteroids (ICS) are the preferred long-term control medication for mild persistent asthma. They reduce airway inflammation and prevent symptoms, whereas short-acting beta-agonists (SABA) are used for quick relief.

Correct Answer: A

Rationale: Methotrexate primarily works by suppressing the immune system, reducing inflammation in rheumatoid arthritis.

Correct Answer: D

Rationale: Pupillary responses and AVPU (Alert, Voice, Pain, Unresponsive) are quick assessments used as alternatives to the Glasgow Coma Score in trauma situations.