The ASKA test detects autoantibodies directed against skeletal (striated) muscle fibers in the blood. These antibodies are typically associated with autoimmune diseases, especially those affecting the nervous system or liver.
The ASKA test helps in diagnosing or supporting the diagnosis of:
Autoimmune hepatitis type 1
Myasthenia gravis (MG) – especially with thymoma
Thymoma-related autoimmune disorders
Rarely, it may be positive in:
Primary biliary cholangitis
Other systemic autoimmune diseases
3 Day(s)*
A blood sample is drawn from a vein.
The lab analyzes it using techniques like indirect immunofluorescence or ELISA.
Depending on the suspected condition, your doctor may also request:
ANA (Antinuclear Antibody)
SMA (Smooth Muscle Antibody)
LKM (Liver-Kidney Microsomal Antibody)
Anti-AChR antibodies (for myasthenia gravis)
Liver function tests (LFTs)
CT or MRI (if thymoma is suspected)
