Lab. Tests what is a Rheumatoid Factor (RF) test? Scholar Idea October 21, 2021 The rheumatoid factor test is used to help diagnose rheumatoid arthritis, and to distinguish it from other forms of arthritis. Continue Reading Previous: Professor in Analogue IC DesignNext: What is Antinuclear Antibody (ANA) test? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Related Stories Lab. Tests What is Fructosamine test? Scholar Idea October 21, 2021 Lab. Tests What is Cystatin c test? Scholar Idea October 21, 2021 Lab. Tests What is Prostate Specific Antigen (PSA)? Scholar Idea October 21, 2021