extractable nuclear antigen (ENA) Ab

Introduction

Antibodies to extractable nuclear antigen.

Indications

• identification of autoantibodies
• assessment of autoimmune disease

Procedure

A panel of tests for auto-antibodies:

• Sm antibody
• RNP antibody
• SSA/Ro antibody
• SSB/La antibody
• Scl-70 antibody
• Jo-1 antibody

More general terms

• chemistry panel

Components

• RNP Ab in serum
• SSA/Ro Ab in serum
• SSB/La Ab in serum
• Sm (Smith) Ab in serum
• Scl-70 (anti-topoisomerase) Ab in serum
• Jo-1 Ab in serum