When exposed to a pathogen, your body’s immune system creates antibodies in order to fight the infection. However, a specific kind of antibody, antinuclear antibodies, actually do damage to your body because they attack your tissues, targeting cells’ nucleus. An ANA blood test can determine the amount of antinuclear antibodies in your blood. A positive ANA result may indicate that your immune system has a misdirected attack to your tissue, which doesn’t necessarily mean you have a disease or are unhealthy. A few reasons why you might have to get an ANA test is to see if you have
- rheumatoid arthritis,
- Other auto-immune diseases
- women 65 years or older tend to have positive ANA and are also perfectly healthy.
- Some chronic infectious diseases have been associated with antinuclear bodies such as mononucleosis.
- There are some medications that may trigger the creation of antinuclear antibodies like blood pressure lowering medication and some anti seizure medication.