Key points about liver function test
- Checks enzymes and other substances in the blood to assess liver health
- Can detect liver damage, inflammation, or infection
- Often used to monitor liver disease or the effects of medications
- May require fasting, depending on the specific tests ordered
- Quick and low-risk blood test with no downtime
Overview
A liver function test (LFT) is a group of blood tests that measure how well your liver is working. It checks for liver enzymes, proteins, and waste products to look for liver damage or disease. It’s often used to diagnose liver conditions or monitor ongoing liver health.
Candidates for liver function test
You may need this test if you:
- Have symptoms of liver problems, such as jaundice or stomach pain
- Are taking medications that affect the liver
- Have liver disease, hepatitis, or alcohol-related liver damage
- Have risk factors like diabetes, obesity, or heavy alcohol use
Preparation for liver function test
Some liver tests require fasting. Your doctor will let you know if you need to stop eating or drinking before your blood is drawn.
Risks for liver function test
This is a safe test. Possible side effects include mild pain or bruising at the needle site, but these are usually minor.
Recovery from liver function test
No recovery is needed. Once your blood is drawn, you can resume regular activities right away.