Medicine Which of the following best represents the impoance of Rheumatoid factor in rheumatoid ahritis? A Rheumatoid factor is associated with bad prognosis B Rheumatoid factor correlates with disease activity C Rheumatoid factor is very common in childhood Rheumatoid ahritis D Absent rheumatoid factor rules out the diagnosis of Rheumatoid ahritis π‘ Explanation Which of the following best represents the impoance of Rheumatoid factor in rheumatoid ahritis? β Correct Answer: A. Rheumatoid factor is associated with bad prognosis