What is the Purpose of a Liver Function Test?

The liver is one of the most important organs in our body. It is responsible for several bodily functions and ensures our good health. It helps detoxify harmful substances and aids in digestion. It also regulates our metabolism. 

Doctors recommend a Liver Function Test (LFT) to measure various enzymes, proteins as well as other substances in the blood to determine the function of the liver. Get to know more about the purpose of this test below. 


What Does a Liver Function Test Measure?

An LFT test measures the following key components, including –


  1. Alanine Aminotransferase (ALT): This is an enzyme that helps break proteins. High levels of ALT can indicate liver damage or inflammation.

  2. Aspartate Aminotransferase (AST): It is another enzyme that gets released into the bloodstream when the muscles or liver are damaged. High levels of AST can be a sign of liver problems. This may also be a sign of muscle injury.

  3. Alkaline Phosphatase (ALP): It is an enzyme that is found in the bile ducts, liver, and bones. High levels may signal towards bile duct or liver problems.

  4. Bilirubin: This waste product is produced when there is a breakdown of the red blood cells. Excess bilirubin levels may result in jaundice, a condition characterized by the yellowing of the skin and eyes. This may also be a sign of liver dysfunction.


  1. Albumin and Total Protein: These proteins are usually made by the liver. If albumin levels are low, doctors may suspect liver disease or other medical conditions that affect protein production. 


Importance of a Liver Function Test

A Liver Function Test is necessary to identify the signs of liver disease or damage even before symptoms appear. This enables early diagnosis and intervention while improving treatment outcomes for patients. 

Conclusion

A Liver Function Test acts as a crucial tool in assessing liver function and identifying liver issues before they become severe. Maintaining a healthy lifestyle and regular monitoring can keep your liver healthy. If you want to get this test done as a part of your routine health check-up, you may book an appointment at our pathology lab in Mukundapur. 

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