29th October 2020

A 48-year-old lady presents to her GP, complaining of a two-month history of finger swelling

A 48-year-old lady presents to her GP, complaining of a two-month history of finger swelling, pain and stiffness. The pain and stiffness are worse in the morning and lasts for over an hour. The GP suspects rheumatoid arthritis and conducts several blood tests to support this diagnosis. Which of the following blood tests is most specific to the diagnosis of rheumatoid arthritis?  

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