Liver Function Tests: Purpose, Procedure, and Results
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Liver function tests (LFTs) are a group of blood tests used to evaluate the overall health and function of the liver The liver is a vital organ responsible for many important functions in the body, including detoxification, metabolism, and production of bile LFTs can help diagnose and monitor liver diseases, as well as evaluate the effectiveness of treatments
The purpose of LFTs is to measure the levels of various enzymes, proteins, and other substances in the blood that are produced by the liver. The most common LFTs include alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), bilirubin, and albumin. High levels of ALT and AST may indicate liver damage, while high levels of ALP may indicate liver disease or bone disorders. Bilirubin is a waste product produced by the liver that is eliminated from the body through bile. High levels of bilirubin may indicate liver or gallbladder disease. Albumin is a protein produced by the liver that helps maintain fluid balance in the body Low levels of albumin may indicate liver disease or malnutrition
To perform LFTs, a healthcare provider will draw a sample of blood from a vein in the arm. The procedure is relatively simple and does not require any special preparation or fasting. Results are usually available within a few days and will be reviewed by a healthcare provider to determine if any further testing or treatment is necessary.
In conclusion, LFTs are an important tool for evaluating the overall health and function of the liver. They are used to diagnose and monitor liver diseases, as well as evaluate the effectiveness of treatments. If you are experiencing symptoms of liver disease, such as fatigue, abdominal pain, or jaundice, talk to your healthcare provider about whether LFTs are right for you
