Most complications from Juvenile dermatomyositis (JDM) are related to prolonged and severe weakness; secondary complications from medical treatments are also likely recognized complications of JDM. Of the following, the LEAST common complication is

Correct Answer: C

Rationale: Cardiac arrhythmias are less common in JDM.

Correct Answer: D

Rationale: Nasal congestion is better treated with decongestants rather than antihistamines.

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: B

Rationale: Aspirin can exacerbate gout by altering uric acid excretion, making it contraindicated in these patients.

Correct Answer: A

Rationale: Acute epiglottitis presents with high fever, drooling, and airway obstruction, often requiring emergency care.