Identify the agent causing the allergy in the patient, from which the patient can be advised on appropriate methods to avoid future allergies. In patients who are sensitive to allergens, specific IgE can be detected in the specimen, but the patient has no clinical symptoms.

The 23 antinuclear antibody test plays a very important role in determining the type of autoantibody, helping doctors accurately diagnose autoimmune diseases, especially rheumatic diseases.