Liver function tests are blood tests that can help determine the overall health of the liver. These tests look at enzymes, proteins, and waste products made by the liver. A person’s blood is tested for proteins made by the liver such as albumin and prothrombin, enzymes such as alkaline phosphatase (ALP), alanine transaminase (ALT), aspartate aminotransferase (AST), and bilirubin (a waste product).[1] Imaging tests such as ultrasounds, computed tomography CT, and magnetic resonance imaging (MRI) are also done to detect and measure liver scarring.
What are some tests used to determine liver function and health?
Written by:
Fact-checked
by:
•Last Updated: May 16, 2025
Liver function tests are blood tests that assess liver health by measuring enzymes, proteins, and waste products, including albumin, prothrombin, and bilirubin. Additionally, imaging tests like ultrasounds, CT scans, and MRIs are used to detect liver scarring.