Antinuclear Antibody
Full Form of ANA
What is ANA?
ANA stands for Antinuclear Antibody, a type of autoantibody that targets the nucleus of the body's own cells. The ANA test is primarily used to diagnose autoimmune disorders, especially systemic lupus erythematosus (SLE). In India, the test is commonly prescribed by rheumatologists and general physicians when a patient presents with symptoms like unexplained fever, joint pain, fatigue, or skin rashes. It is performed at diagnostic labs using immunofluorescence or ELISA methods, and results are reported as titers (e.g., 1:80, 1:320). A positive ANA alone is not diagnostic; it must be interpreted alongside clinical features and other lab tests. The test is widely taught in Indian medical colleges and is a frequent topic in NEET PG, USMLE, and nursing exams. Early detection of autoimmune diseases through ANA testing has improved treatment outcomes, especially in urban hospitals and specialty clinics across India. However, false positives can occur in healthy individuals, elderly, or those on certain drugs. Therefore, clinical correlation remains essential. The ANA test is part of standard panel for connective tissue disease evaluation and is reimbursed under many health insurance plans in India.
ANA का फुल फॉर्म
प्रतिनाभिकीय प्रतिरक्षी
Example
The rheumatologist advised an ANA test after the patient reported persistent joint stiffness and malar rash.