First Time User? Sign Up Now
First Time User? Enroll now.
Home > Health Library > Liver Function Tests
Some blood tests are used to determine whether your liver is damaged or inflamed. Although these tests help your doctor evaluate how well your liver is working, they cannot tell if you have hepatitis C.
Your doctor may do tests to measure certain chemicals produced by the liver. These tests can help your doctor check how well your liver is working.
Tests may measure:
Your liver may be damaged if you have increased levels of:
An increased level of alkaline phosphatase (AP) may indicate blockage of bile ducts.
Liver tests are done when a medical history or physical exam suggests that something may be wrong with your liver.
These tests can also help diagnose long-term (chronic) infection. If liver enzymes are high, a test for hepatitis C antibodies may be done to see if you have hepatitis C.
If you are being treated with antiviral therapy, you may have liver tests from time to time to see whether treatment is working.
Findings of liver function tests may include the following:
All levels are within the normal range.
One or more levels are outside the normal range. Abnormal liver function tests may indicate that your liver is inflamed or is not working normally. This can be a sign that you have a viral infection.
Elevated liver enzymes can be caused by many things other than hepatitis C, such as obesity, hepatitis B, autoimmune hepatitis, certain medicines, or long-term alcohol use. So you will need other tests (such as a hepatitis C antibody blood test or a liver biopsy) to confirm a diagnosis of hepatitis C.
People with chronic hepatitis C have abnormal liver enzyme levels most of the time. But the levels can fluctuate between normal and abnormal throughout the course of the disease.
Liver tests can be used to help you and your doctor develop a treatment plan. Signs that you might need treatment include:
Current as ofMarch 28, 2019
Author: Healthwise StaffMedical Review: E. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineMartin J. Gabica, MD - Family MedicineW. Thomas London, MD - Internal Medicine, Hepatology
Current as of:
March 28, 2019
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & W. Thomas London, MD - Internal Medicine, Hepatology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2019 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
10030 Green Level Church Road
Cary, NC 27519
166 Springbrook Ave.
Clayton, NC 27520
400 Health Park Drive
REX Healthcare of Garner, Suite 100
Garner, NC 27529
781 Avent Ferry Road
REX Healthcare of Holly Springs, Suite 204
Holly Springs, NC 27540
6905 Knightdale Blvd.
Knightdale, NC 27545
UNC REX Healthcare4420 Lake Boone TrailRaleigh, NC 27607, USA919-784-3100
Chosen for Excellence
Co-Worker & Physician Login
UNC Health Talk
Copyright 2019 UNC Health Care. All rights reserved.