Question

A 10-year-old boy with a history of atopic eczema and allergic rhinitis presents with episodic wheezing, shortness of breath, and a prolonged expiratory phase. Which of the following is the most appropriate initial diagnostic test?

Accepted Answer

Peak expiratory flow variability measurement

Answer

Full pulmonary function test with gas transfer

Answer

Arterial blood gas analysis

Answer

Chest radiograph

Answer

High-resolution CT chest

Practice question

A 10-year-old boy with a history of atopic eczema and allergic rhinitis presents with episodic wheezing, shortness of breath, and a prolonged expiratory phase. Which of the following is the most appropriate initial diagnostic test?