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Smooth Muscle Antibody (SMA) and F-actin Antibody

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Also known as: SMA; Anti-Smooth Muscle Antibody; ASMA; Actin Antibody; F-Actin Antibody; ACTA
Formal name: Smooth Muscle Antibody

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At a Glance

Why Get Tested?

To help diagnose autoimmune hepatitis and distinguish it from other causes of liver injury

When to Get Tested?

When you have hepatitis that your healthcare practitioner suspects may be due to an autoimmune-related process

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?