Misdiagnosis of Rheumatoid Arthritis Is Common. Many rheumatic diseases have overlapping symptoms, and that can complicate the effort to obtain an accurate diagnosis for RA. Some diseases are complex. They may have overlapping characteristics with other conditions, making diagnosis more difficult.
Viral infections, other kinds of arthritis, and other autoimmune diseases may all be mistaken for RA, depending on which specific constellation of symptoms you have.
Imaging Tests
Magnetic resonance imaging (MRI) and ultrasound may help diagnose rheumatoid arthritis in the early stages of the disease. In addition, these imaging tests can help evaluate the amount of damage in the joints and the severity of the disease.
The differential diagnosis is potentially broad including, but not limited to, psoriatic arthritis, haemochromatosis, sarcoidosis and other forms of polyarthritis associated with various connective tissue diseases including systemic lupus erythematosus and primary Sjogren's syndrome.
Some of the main blood tests used include: erythrocyte sedimentation rate (ESR) – which can help assess levels of inflammation in the body. C-reactive protein (CRP) – another test that can help measure inflammation levels.
Anti-CCP antibody test (ACCP or CCP). This test is for a type of autoantibody called cyclic citrullinated peptide (CCP) antibodies, which can be found in the blood of 60% to 80% of people with rheumatoid arthritis.
Diagnosis in patients with characteristic findings – The diagnosis of RA can be made in a patient with inflammatory arthritis involving three or more joints, positive RF and/or anti-citrullinated peptide/protein antibody, disease duration of more than six weeks, and elevated CRP or ESR, but without evidence of ...
The main difference between osteoarthritis and rheumatoid arthritis is the cause behind the joint symptoms. Osteoarthritis is caused by mechanical wear and tear on joints. Rheumatoid arthritis is an autoimmune disease in which the body's own immune system attacks the body's joints.
Studies also have found that a lack of vitamin D is linked to rheumatoid arthritis, an autoimmune disease characterized by swollen, aching joints and numbness and tingling in the hands and feet.
Warning Signs
Pain from arthritis can be constant or it may come and go. It may occur when at rest or while moving. Pain may be in one part of the body or in many different parts. Some types of arthritis cause the skin over the affected joint to become red and swollen, feeling warm to the touch.
Nonetheless, RA is not the only condition which includes joint inflammation, fever, and fatigue as its symptoms. In fact, these are also common in several other conditions like Fibromyalgia, Osteoarthritis, Ankylosing Spondylitis, Psoriatic Arthritis, Gout, Lupus, and infectious arthritis.
RA is symmetrical, where a patient feels symptoms in the same spot on both sides of the body, often in the joints in the feet and hands. Osteoarthritis, in contrast, begins in an isolated joint, often in the knee, fingers, hands, spine and hips. While both sides may hurt, one side is more painful.
Acute arthritis is a term that refers to rapid or sudden onset of joint inflammation and pain. Acute arthritis can be caused by several processes, including autoimmune diseases. Autoimmune diseases occur when the body mistakenly attacks healthy cells and tissues, causing inflammation.
Early rheumatoid arthritis tends to affect your smaller joints first — particularly the joints that attach your fingers to your hands and your toes to your feet. As the disease progresses, symptoms often spread to the wrists, knees, ankles, elbows, hips and shoulders.
If rheumatoid arthritis is not treated early or is not well controlled, the inflammation in your joints could lead to significant and permanent damage. Problems that can affect the joints include: damage to nearby bone and cartilage (a tough, flexible material that covers the surface of joints)
A person with RA may feel intense pain in their joints during flares. This may feel like sustained pressure, a burning sensation, or a sharp pain. However, people with RA may also experience periods of remission when they feel few to no symptoms. In addition to causing pain in the joints, RA can affect the whole body.
Methotrexate. Methotrexate is now considered the first-line DMARD agent for most patients with RA. It has a relatively rapid onset of action at therapeutic doses (6-8 weeks), good efficacy, favorable toxicity profile, ease of administration, and relatively low cost.
The typical case of rheumatoid arthritis begins insidiously, with the slow development of signs and symptoms over weeks to months. Often the patient first notices stiffness in one or more joints, usually accompanied by pain on movement and by tenderness in the joint.
Your doctor will use several blood tests to help diagnose you with rheumatoid arthritis (RA) and other inflammatory conditions. What it measures: Rheumatoid factor is a group of proteins your body makes when your immune system attacks healthy tissue.
Radiographic imaging: the 'gold standard' for assessment of disease progression in rheumatoid arthritis.
An MRI is not usually necessary for diagnosing RA. One is typically ordered only if x-rays and ultrasound have not been helpful. Like ultrasound, MRI can detect inflammation and other changes in the joint's soft tissue before bone erosion takes place. In addition, an MRI can show bone damage.