The following are examples of types of financial analysts: Portfolio managers select the mix of products, industries, and regions for their companyâs investment portfolio. These managers are responsible for the overall performance of the portfolio.
Rheumatoid factor (RF) facts. 1  Rheumatoid factor is an antibody that is detectable in the blood of approximately 80% of adults with rheumatoid arthritis.2  Sometimes rheumatoid factor can be detected in the blood of normal individuals and of those with other autoimmune diseases that are not rheumatoid arthritis.heumatoid factor (RF) facts. 1  Rheumatoid factor is an antibody that is detectable in the blood of approximately 80% of adults with rheumatoid arthritis.
Causes of Rheumatoid factor positive that are common . The following causes of Rheumatoid factor positive are diseases or conditions that affect more than 1 million people in the USA: Connective tissue diseases; Rheumatoid arthritis; Sjogrens; more causes...Â» Causes of Rheumatoid factor positive that are very rare The following causes of Rheumatoid factor positive appear in the population at a rate of substantially less than 200,000 people per year in the USA: