LFT Medical Abbreviation

LFT Medical Abbreviation

LFT stands for "liver function test." The liver function test is a blood test that measures the levels of certain enzymes and proteins in the blood that are produced by the liver. These tests are commonly performed to assess the health of the liver, to diagnose liver diseases or conditions, or to monitor the effectiveness of treatments. The liver is a vital organ that performs many important functions in the body, including detoxifying harmful substances, producing bile to aid in digestion, and storing and releasing glucose as needed.

What happens when LFT is high?

When the liver function test (LFT) results are high, it typically indicates that there is some kind of liver damage or dysfunction. The degree of elevation can vary depending on the underlying cause, and can be mild, moderate, or severe.

Some of the common causes of high LFT results include:

  1. Hepatitis or other viral infections
  2. Alcohol abuse or drug abuse
  3. Nonalcoholic fatty liver disease (NAFLD) or nonalcoholic steatohepatitis (NASH)
  4. Autoimmune diseases such as primary biliary cirrhosis or autoimmune hepatitis
  5. Medications that are toxic to the liver

When LFT results are high, further testing may be necessary to determine the underlying cause and to guide treatment. This may include additional blood tests, imaging studies such as an ultrasound or MRI, or a liver biopsy. It is important to identify and treat any underlying liver conditions early to prevent complications and improve outcomes.

What is the normal LFT level?

The normal range for liver function test (LFT) levels can vary slightly depending on the laboratory and the specific test performed. However, in general, the following are considered normal ranges:

  1. Alanine aminotransferase (ALT) - 7-55 units/L for men, 7-45 units/L for women
  2. Aspartate aminotransferase (AST) - 8-48 units/L for men, 7-38 units/L for women
  3. Alkaline phosphatase (ALP) - 44-147 units/L for adults
  4. Bilirubin - less than 1.2 mg/dL for adults.