Anti Mitochondrial Antibodies test is a blood test to diagnose primary biliary cholangitis, also sometimes called primary biliary cirrhosis (PBC).
PBC is caused by an immune system attack on the small bile ducts within the liver. Damaged bile ducts cause scarring, which can lead to liver failure. This condition also brings an increased risk of liver cancer. Thus AMA test is ordered.
Normal test results are negative for AMA. A positive AMA means that there are detectable levels of antibodies in the bloodstream.
