Smooth muscle Ab

Keywords: Smooth muscle antibody

Specimen:

5 mL blood in plain tube.

Method:

Indirect IF.

Immunoassay for Factin antibodies.

Reference Interval:

Not detected.

Application:

Suspected autoimmune hepatitis.

Interpretation:

A titre of > 160 in adults or > 40 in children occurs in a proportion of patients with autoimmune hepatitis.

Lower titres are relatively non-specific and may be found in viral infections (eg, Infectious mononucleosis, viral hepatitis) and in neoplasia.

Reference:

Silvestrini R.A. J Clin Pathol. 2001; 54(9): 677-678.