PREVIOUS QUESTION:

 

NEXT QUESTION:

 

How are blood tests used to diagnose psoriatic arthritis?

ANSWER

Erythrocyte sedimentation rate gives a rough idea of how much inflammation is in your body, which could be caused by psoriatic arthritis. But higher levels can come from other autoimmune diseases, an infection, a tumor, liver disease, or pregnancy, too.

Rheumatoid factor and anti-CCP antibody tests can rule out rheumatoid arthritis. People with that condition may have higher levels of these in their blood. More than half of people who have psoriatic arthritis with spine inflammation will have the genetic marker HLA-B27. You can get tested to find out if you do. People with psoriatic arthritis may have mild anemia.

SOURCES: Arthritis Foundation: "Psoriatic Arthritis: What are the effects?" American College of Rheumatology: "Psoriatic Arthritis."

Reviewed by David Zelman on April 29, 2019

SOURCES: Arthritis Foundation: "Psoriatic Arthritis: What are the effects?" American College of Rheumatology: "Psoriatic Arthritis."

Reviewed by David Zelman on April 29, 2019

NEXT QUESTION:

How are X-rays used to diagnose psoriatic arthritis?

WAS THIS ANSWER HELPFUL

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.