14th September 2020

A 40-year-old patient with a background of rheumatoid arthritis presents with dry mouth

A 40-year-old patient with a background of rheumatoid arthritis presents with dry mouth. She also describes occasional grittiness to both eyes, especially in the morning. 

Which of the following markers is most specific for the underlying condition?

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