This includes DNA Paternity Testing and Antinuclear Antibody. DNA Paternity test is a blood test that determines the genetic link between a presumed father and his child or children. The standard process involves collecting DNA samples from the inside of the cheek of both the father and the child/children using an oral swab. Where an oral swab is unavailable, special samples may be collected using hair, tissue, or blood. DNA paternity tests are extremely accurate. An antinuclear antibody test is a blood test that examines the body for specific antibodies. Antibodies are proteins produced by the immune system to combat bacteria, viruses, and other pathogens. But the immune system might sometimes confuse the body’s cells for alien invaders, producing antibodies that assault the cells and tissues, known as “autoantibodies.” Autoantibodies can cause harm to joints, skin, muscles, and other body components. This test screens for Systemic lupus erythematosus, Rheumatoid arthritis, Scleroderma and Sjogren’s syndrome.