Should Rheumatoid Factor Be Positive In Psoriatic Arthritis?
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight but may include:
- Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken)
Special considerations
The RF test can be positive in some healthy people.
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More information on "Should Rheumatoid Factor Be Positive In Psoriatic Arthritis?"
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Rheumatoid factor
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