When positive, the serum is diluted, or titered, and the test done again. These steps are repeated until the serum is so dilute it no longer gives a positive result. The last dilution that shows fluorescence is the titer reported. The pattern of fluorescence within the cells gives the physician clues as to what the disease might be. The test result includes the titer and the pattern.
Results are available within one to three days.
No special preparations or diet changes are required before a person undergoes an antinuclear antibody test. Aftercare Discomfort or bruising may occur at the puncture site or the person may feel dizzy or faint. Pressure to the puncture site until the bleeding stops reduces bruising. Warm packs relieve discomfort. Normal results Normal results will be negative, showing no antinuclear antibodies.