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How Is Psoriatic Arthritis Tested——how Do You Determine If It Is Osteoarthritis Or Psoriatic Arthritis.

A MyPsoriasisTeam Member asked a question 💭
Mississippi State, MS

I am 78 and had osteoarthritis in my hands——developed Psorosis and seems within a year i have it all throughout my body, but none of the drs seem to be able to determine what kind—-they basically say it is from “old age”. If it is psoriatic arthritis wouldn’t it be treated differently?????

January 28, 2023
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A MyPsoriasisTeam Member

You should see a rheumatologist. They can determine if it’s psoriatic arthritis. There isn’t an actual test but they will check your joints and may do X-rays. Hope you get some answers soon.

January 28, 2023
A MyPsoriasisTeam Member

PsA causes a lot of swelling and joint pain that can move from joint to joint where OA stays put. PsA is accompanied by a lot of muscle pain attached to the involved joint.

Consider finding a better rheumatologist. Just because you are older doesn't mean you should suffer!

July 14, 2023
A MyPsoriasisTeam Member

Yes it would be treated very differently! Only a rheumatologist would be able to do the proper testing for you to be diagnosed

January 29, 2023
A MyPsoriasisTeam Member

To determine if it is osteoarthritis (OA) or psoriatic arthritis (PsA), doctors use a combination of methods:

Diagnostic Methods for Psoriatic Arthritis
- Medical History and Examination: Dermatologists and rheumatologists take a detailed medical history, including any family members with psoriasis or autoimmune Show Full Answer

To determine if it is osteoarthritis (OA) or psoriatic arthritis (PsA), doctors use a combination of methods:

Diagnostic Methods for Psoriatic Arthritis:
- Medical History and Examination: Dermatologists and rheumatologists take a detailed medical history, including any family members with psoriasis or autoimmune diseases. A physical exam follows to check for symptoms.
- Blood Tests: These can identify inflammatory markers like erythrocyte sedimentation rate and C-reactive protein, which are elevated in PsA. PsA does not have specific autoimmune markers.
- Imaging Tests: X-rays, ultrasound, and MRI help diagnose PsA and determine disease progression. Ultrasound can recognize specific inflammatory patterns in PsA.
- Joint Fluid Analysis: Analyzing fluid from affected joints can confirm PsA.

Diagnostic Methods for Osteoarthritis:
- Imaging Tests: X-rays are the first line of diagnosis for OA, showing cartilage wear. MRI is used as a second-line tool.
- Blood Tests: OA does not show signs in blood tests. Lack of inflammation in blood tests can indicate OA.

Key Differences:
- Cause: PsA is an autoimmune disease where the immune system attacks healthy tissues. OA involves the wearing away of cartilage between joints.
- Inflammation: PsA shows inflammatory markers in blood tests, while OA does not.

Similarities:
- Imaging Tests: Both conditions use X-rays, ultrasound, and MRI for diagnosis.

By combining these methods, doctors can differentiate between PsA and OA and develop an effective treatment plan.

July 21, 2024

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