AST, or aspartate aminotransferase, is an enzyme found in the liver and other organs. Elevated levels of AST can be an indication of a number of medical conditions, ranging from viral infections to liver damage. It is important to understand the context of an elevated AST reading to determine its significance.
What is AST?
AST, also known as aspartate aminotransferase, is an enzyme found in the liver, heart, and other organs. It is released into the bloodstream when these organs have been damaged or inflamed. AST is routinely measured in blood tests as part of a liver panel.
What Causes High AST Levels?
Elevated AST levels can be caused by a variety of medical conditions, including viral hepatitis, alcohol abuse, mononucleosis, cirrhosis, and liver cancer. Other conditions such as heart attack, muscular dystrophy, and pancreatitis can also cause increased AST levels.
What Are the Risk Factors?
The risk factors for high AST levels vary depending on the underlying cause. For example, individuals at risk for viral hepatitis include intravenous drug users, people who have multiple sexual partners, and those who travel to areas with high rates of hepatitis infection. Alcohol abuse and liver damage are also risk factors for high AST levels.
When Should I See a Doctor?
It is important to consult with a physician if you experience any symptoms associated with high AST levels, such as jaundice, fatigue, abdominal pain, or loss of appetite. Your doctor can assess your symptoms, order blood tests, and determine the cause of your elevated AST levels. Treatment will vary depending on the underlying condition.
