Serum or Plasma Anticorpus to Nucleic Acid (e.g., DNA/RNA) Antibody Screening

What This Test Measures

The test looks for the presence of antibodies that can bind to nucleic acids (DNA or RNA). These antibodies may be produced in response to infections, autoimmune conditions, or other immune system reactions. The method used is typically an immunoassay, which measures the concentration of these antibodies in your serum or plasma.

Why It Might Be Ordered

Your healthcare provider may order this test if you have symptoms or conditions linked to immune responses against nucleic acids, such as unexplained fatigue, autoimmune diseases, or suspected viral infections. It can also be part of broader screening for conditions like lupus or other autoimmune disorders.

Common Uses in Healthcare

This screening test is often used as an initial step to identify potential immune-related reactions. It may not provide a definitive diagnosis but can guide further testing or monitoring.

What to Expect Before the Test

No special preparation is needed for this test. You may have a blood draw, where a small sample of your blood is taken from a vein in your arm. If a urine sample is involved, you may be asked to collect a midstream urine specimen.