Often a sample of blood or joint fluid can help you doctor confirm a diagnosis. For example, a blood test showing high blood levels of rheumatoid factor – an antibody that acts against the blood component gamma globulin – or antibody called anti-cyclic citrullinated peptide antibody (anti-CCP) may suggest rheumatoid arthritis. High levels of antinuclear antibodies (ANAs), abnormal antibodies directed against the cells' nuclei, could suggest lupus or another inflammatory disease. A blood test that detects an immune response to the infectious agent that causes Lyme disease could be helpful in confirming a diagnosis of that disease.
Tests of fluid drawn from the joint with a needle may reveal crystals of uric acid, confirming a diagnosis of gout, or bacteria, suggesting that an infection is causing the joint inflammation.
Learn more about lab tests used in diagnosing arthritis.
Lab Tests for Hip Problems
Tests that tell what's going on inside your body.
Often a sample of blood or joint fluid can help you doctor confirm a diagnosis. For example, a blood test showing high blood levels of rheumatoid factor – an antibody that acts against the blood component gamma globulin – or antibody called anti-cyclic citrullinated peptide antibody (anti-CCP) may suggest rheumatoid arthritis. High levels of antinuclear antibodies (ANAs), abnormal antibodies directed against the cells' nuclei, could suggest lupus or another inflammatory disease. A blood test that detects an immune response to the infectious agent that causes Lyme disease could be helpful in confirming a diagnosis of that disease.
Tests of fluid drawn from the joint with a needle may reveal crystals of uric acid, confirming a diagnosis of gout, or bacteria, suggesting that an infection is causing the joint inflammation.
