If your doctor suspects you may have arthritis, they will likely order a variety of tests to help confirm the diagnosis. These tests can include blood tests, imaging tests, and physical exams.
Blood Tests: Blood tests can help identify certain markers of inflammation in the body, which can be indicative of an inflammatory type of arthritis such as rheumatoid arthritis. The most common blood tests used to diagnose arthritis include C-reactive protein (CRP) and Erythrocyte Sedimentation Rate (ESR). Other tests, such as rheumatoid factor (RF) and antinuclear antibody (ANA) tests, may also be ordered.
Imaging Tests: Imaging tests can help provide your doctor with a clear picture of the joints and the surrounding tissues. Common imaging tests used to diagnose arthritis include x-rays, ultrasounds, and magnetic resonance imaging (MRI). These tests can help your doctor see any damage caused by arthritis, as well as the degree of joint damage, joint deformities, and signs of joint inflammation.
Physical Exam: During a physical exam, your doctor will check your joints for signs of swelling, tenderness, and stiffness. Your doctor may also ask you to perform certain movements to assess your range of motion and any pain or weakness.
Ultimately, the tests your doctor orders will depend on the type of arthritis they suspect you may have. It is important to discuss any symptoms you are experiencing with your doctor to ensure you receive the appropriate testing and treatment.