Anti-Smooth Muscle Antibody

Alternate Names

  • SMA (Smooth Muscle Antibody)

Autoimmune diseases cause the body to attack itself, which leads to inflammation and results in damage to muscles, tissues, and organs. The body produces antibodies specific to each autoimmune disease; the antibody levels measured in your blood are then used by your doctor to diagnose the disease that is causing your symptoms. ASMA is a blood test that is mainly used to diagnose lupoid chronic active hepatitis (CAH). High ASMA blood levels are also seen in people with asthma, cirrhosis, viral hepatitis, multiple sclerosis (MS), or cancer.


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