Anti-SM (Anti-Smith Antibodies)

This test detects antibodies directed against Smith (Sm) proteins, which are strongly associated with systemic lupus erythematosus (SLE).

• Highly Specific Marker: Anti-SM is rare in the general population but, when present, is highly specific for lupus.
• Diagnostic Value: Helps confirm a lupus diagnosis when other autoimmune markers may be unclear.
• Clinical Insight: While not always linked to disease severity, its presence indicates an underlying autoimmune response that requires monitoring.

Because of its specificity, the Anti-SM test plays a crucial role in identifying lupus early and guiding the right treatment strategy.