20th February 2025

A 34-year-old presents to his GP with a 5-month history of cough and shortness of breath.

A 34-year-old presents to his GP with a 5-month history of cough and shortness of breath. This has been accompanied by a fever at times.

His blood tests show a slightly elevated CRP but are otherwise unremarkable. CXR shows bilateral hilar lymphadenopathy.

You suspect sarcoidosis. Which finding in his urine would support this diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.