Imperial Collage Healthcare

Smooth muscle antibodies

Test Background
Smooth muscle antibodies at a high titre are found in around 90 % of patients with type 1 autoimmune hepatitis. These antibodies occur in 5-15 % of normal subjects at low titre and can be triggered by infection.

Clinical Indications
Differential diagnosis of chronic hepatitis.

Reference Range


Sample Required
RST (rust top)

Sample Volume
5-10 mL (1 mL serum)

Turnaround Time
4 days

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