An **ANA Profile Diagnostic Test** is a comprehensive blood panel ordered following a positive Antinuclear Antibody (ANA) screen to investigate systemic autoimmune disorders. While a standard screen merely indicates the presence of autoantibodies, the profile identifies and measures specific antibodies, including anti-dsDNA, anti-Smith, anti-SSA, anti-SSB, and anti-RNP.

This detailed diagnostic panel is vital for clinicians to differentiate between complex connective tissue diseases such as Systemic Lupus Erythematosus (SLE), Sjögren's syndrome, mixed connective tissue disease, and scleroderma. By mapping a patient's unique autoantibody blueprint, it confirms precise diagnoses and guides tailored treatment strategies.