Looks for antibodies that target your own cells, a common feature of autoimmune conditions such as lupus. If it’s positive, the lab automatically checks how strong it is and which specific antibodies are involved.
Measures how quickly your red blood cells sink to the bottom of a tube. When there’s inflammation, proteins in your blood can make the cells clump and sink faster.
Rheumatoid factor is an antibody that targets your body’s own proteins. It can be found in rheumatoid arthritis, but it can also show up in other conditions and in some healthy people.
CCP antibodies can be a strong clue for rheumatoid arthritis, a condition where the immune system attacks the lining of the joints. They can show up years before joints start to hurt.
Your liver can make more of this protein when your body is dealing with inflammation, infection, or injury. It also carries many medicines through your blood.
Looks for antibodies that can make your blood more likely to clot. Your immune system sometimes makes them by mistake, and this checks the IgG type, the one that may be most linked to clotting problems.
Checks for the IgM type of cardiolipin antibody, which can make blood more likely to clot. It may be tested with the IgG type, and a positive result may be rechecked later, since infections can raise it briefly.
Gliadin is part of gluten, the protein in wheat, barley, and rye. Antibodies against it can point to celiac disease, and the test works best while you’re still eating gluten.
Jo-1 is an antibody linked to a rare condition where the immune system inflames the muscles and often the lungs. It can cause muscle weakness, a lasting cough, or shortness of breath.
When gluten, a protein in wheat, barley, and rye, triggers gut damage in celiac disease, your body can make these antibodies. The test works best while you’re still eating gluten.
Checks for the IgG type of the main celiac antibody. It’s used mostly when your body makes little IgA, which can make the standard celiac test look normal.
CRP is a protein your liver can release when there’s inflammation in your body, such as from an infection, an injury, or a flare of an inflammatory condition. Levels can rise quickly and fall again as you get better.
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