Question

A 16-year-old girl presents with a 2-month history of daily coughing and thick sputum production. She has a history of multiple chest infections. Which investigation is most appropriate to confirm a diagnosis of cystic fibrosis?

Accepted Answer

Sweat chloride test

Answer

Chest X-ray

Answer

High-resolution CT scan

Answer

Genetic testing

Answer

Spirometry

Practice question

A 16-year-old girl presents with a 2-month history of daily coughing and thick sputum production. She has a history of multiple chest infections. Which investigation is most appropriate to confirm a diagnosis of cystic fibrosis?