Liver Function Tests (LFTs): What You Should Know
What Are Liver Function Tests? Liver Function Tests (LFTs) are a collection of blood tests used to assess how well your liver is performing. They measure enzymes, proteins, and substances that either: Reflect the liver’s normal activity, or Leak into the blood when the liver is damaged. When reviewed together with your medical history and symptoms, these results provide an overall picture of liver health. Both higher and lower values than expected may indicate a potential issue. Why the Liver Matters Your liver is one of the body’s most vital organs. It: Processes nutrients from food. Breaks down toxins and removes harmful by-products. Produces bile, which helps digest fats. Regulates blood clotting and stores essential vitamins and glycogen. Plays a role in immunity by filtering bacteria and viruses from the bloodstream. Because it performs so many crucial functions, damage to the liver can have widespread effects. Why Doctors Recommend LFTs Doctors ...