Multiple Choice Questions

Question 1.Which one of the following statements relating to ‘rheumatoid factor’ is true?

A The finding of rheumatoid factor in a given patient's blood is diagnostic of rheumatoid arthritis
B Rheumatoid factor is a poor prognostic factor when found in patients with rheumatoid arthritis
C Rheumatoid factor is an IgE molecule
D Rheumatoid factor can form immune complexes with IgE
E Rheumatoid factors are always found transiently in the blood of patients who have recently suffered from an infection