The Psoriatic Arthritis (Ps A) develops slowly by exposing certain mild symptoms. Psoriatic Arthritis might also sometimes develop quickly and it can be severe as well. The recognition of Ps A, its diagnosis and treatment can aid in preventing or limiting large damage to the joints which happen in the advanced stages of the disease.
Some of the symptoms that appear for Psoriatic Arthritis are swelling on the tendons, tenderness, general fatigue, pain in tendons, decreased movement range, stiffness in the joints, tenderness in the joints, tiredness and morning stiffness, changes in the nail and conjunctivitis.
This disease can attack the joints after the joint is injured like cartilage tear. When the symptoms are repeatedly occurring, the diagnosis of the psoriatic Arthritis is done. The disease causes joint pain or muscle pain without causing any inflammation in the joints. The swelling in the fingers and toes will cause dactylitis. Psoriatic Arthritis normally affects the distal joints of toes and fingers. The wrists, lower back and knees might be affected.
Most of the symptoms of Psoriatic Arthritis resemble that of gout, rheumatoid arthritis and osteoarthritis. The Ps A has to be properly diagnosed by ruling out the symptoms of other similar diseases. For diagnosing the Ps A, one single test is not considered sufficient. There are certain tests that help to rule out the other forms of arthritis.
Tests Used to Diagnose Psoriatic Arthritis
Tests Related to Imaging
The X-rays simply can identify the changes that occur in the joints during Psoriatic Arthritis and are not seen in other Arthritic conditions.
Magnetic Resonance Imaging
The images of the tissues in the body are captured with the help of radio waves and strong magnetic field in magnetic resonance imaging. This type of test is used to search for any problems that might exist with the tendons and ligaments that are present in the lower back and feet.
Tests Done in the Laboratory
The people with rheumatoid arthritis have an antibody called rheumatoid factor in their blood. The rheumatoid factor is not seen in the blood of those suffering from psoriatic arthritis. Due to this reason, the laboratory test helps the doctor to find the difference between the two different arthritis conditions.
Joint Fluid test
A small amount of fluid can be removed from the joint that is affected with the help of a long needle by a doctor. The knee joint suffers from injury mostly. The presence of uric acid crystals in the joint fluid indicates that the person has gout and not psoriatic arthritis. There is also a traditional approach of diagnosing the psoriatic arthritis.
The criteria that are put forward by Moll and Wright were used for diagnosing the psoriatic arthritis. These criteria include blood examination turned out negative for rheumatoid factor, psoriasis of skin and inflammatory arthritis. These criteria also have some limitations like psoriatic arthritis being seen even in the absence of skin psoriasis.
A rheumatologist is the person who is specialized in diagnosing psoriatic arthritis. If active psoriasis is observed in the joints and skin where involvement of nails is also seen then the psoriatic arthritis is said to be diagnosed perfectly.