If the diagnosis is suspected, serology can be performed in a blood test to identify certain antibodies:

Elevated levels of certain antibodies can identify particular allergies.

Each type is based on the number of joints involved, the symptoms, and the presence of certain antibodies in the blood.

The presence of certain antibodies means a recent infection, a past infection, or that you have been vaccinated against the disease.

In addition to signs such as inflammation or certain antibodies that can be measured with tests, risk factors for early joint damage may include:

For instance, those who remained uninfected tended to have higher levels of certain antibodies in their blood.

A blood test can detect high levels of certain antibodies that suggest that you have celiac disease.

New research shows that a certain antibody (disease-fighting part of the immune system) may serve as a marker for narcolepsy.

Antibody tests are done to find certain antibodies that attack red blood cells.

Celiac disease triggers the immune system to produce certain antibodies.