What Are Liver Function Tests?
Liver function tests (LFTs) are blood tests that measure various substances produced by your liver.
These tests provide crucial information about how well your liver functions and can help detect liver diseases or assess how medications may affect your liver.
Typically, these tests include measurements of liver enzymes, proteins, and byproducts like bilirubin.
What Are the Common Liver Function Tests?
The five primary tests include:
- Liver Enzyme Tests: This includes tests for ALT (alanine transaminase), AST (aspartate aminotransferase), ALP (alkaline phosphatase), and GGT (gamma-glutamyl transferase). Higher levels of these enzymes may indicate liver injury.
- Total Protein Test: Measures protein levels in your blood. Low levels may suggest liver dysfunction.
- Bilirubin Test: Bilirubin is a waste product processed by the liver; high levels may indicate liver issues.
- LDH Test: Lactate dehydrogenase (LDH) is an enzyme linked to liver function, with abnormal levels suggesting potential liver damage.
- Prothrombin Time (PT) Test: Measures blood clotting time, as liver-produced proteins are vital for clotting.
When Are Liver Function Tests Done?
Liver function tests are typically performed to:
- Screen for liver diseases such as hepatitis.
- Monitor the progression of existing liver conditions.
- Check the impact of medications that might harm the liver.
- Assess liver function before surgeries or other treatments.
How Are Liver Function Tests Performed?
Liver function tests are conducted through a sample of blood taken from a vein in your arm, and the procedure is quick, usually lasting only a few minutes.
The blood is then analyzed in a laboratory for abnormal enzyme levels and other markers, which help identify potential liver problems.
What Can Liver Function Tests Diagnose?
While liver function tests are not enough to definitively diagnose specific liver conditions, they can indicate problems such as:
- Fatty liver disease
- Hepatitis (viral, autoimmune, or toxic)
- Cirrhosis
- Liver cancer
- Biliary disorders (like PBC)
- Hemochromatosis and Wilson’s disease
Abnormal test results may lead to further diagnostic tests, such as imaging or a liver biopsy.
Prioritize Your Liver Health Today!
Your liver plays a crucial role in your overall well-being. At Cure Pathology, we provide precise and prompt liver function testing to help you monitor and preserve your liver’s health. Book your test now and take proactive steps toward a healthier tomorrow!
