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Lab Tests for Foot Problems

Tests that tell what's going on inside your body.

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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 an 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. 

Tests of fluid drawn with a needle from the joint may reveal crystals of uric acid, confirming a diagnosis of gout; or a bacterium, suggesting that joint inflammation is caused by an infection. 

The Arthritis Foundation is the leading organization 
providing support and funding research to improve the 
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