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www.medicinenet.com/liver_blood_tests/article.htm

Liver blood tests are some of the most commonly performed blood tests. These tests can be used to assess liver functions or liver injury. An initial step in detecting liver damage is a simple blood test to determine the level of certain liver enzymes (proteins) in the blood.

www.mayoclinic.org/tests-procedures/liver-function-tests/about/pac-20394595

Liver function tests check the levels of certain enzymes and proteins in your blood. Levels that are higher or lower than normal can indicate liver problems. Some common liver function tests include: Alanine transaminase (ALT). ALT is an enzyme found in the liver that helps convert proteins into energy for the liver cells.

www.emedicinehealth.com/liver_blood_tests/article_em.htm

Liver blood tests are used to check normal, elevated (high), and low blood levels of liver enzymes (AST and ALT or aminotransferases). Symptoms of elevated levels of liver enzymes are fever, abdominal pain, poor appetite, and nausea. Drugs, for example, acetaminophen (Tylenol), pain drugs, and statins caused high levels of liver enzymes.

www.webmd.com/hepatitis/liver-function-test-lft

ALT is an enzyme that helps break down proteins and is found mainly in your liver. High levels in your blood could mean you have liver damage. ... “Blood Test: (Liver) Hepatic Function Panel.” ...

patient.info/digestive-health/abnormal-liver-function-tests-leaflet

Liver function tests are a set of blood tests commonly done to check on the health of your liver. Changes in liver function tests give a clue as to whether your liver is under strain, inflamed, infected or diseased, and how badly.

www.healthline.com/health/liver-function-tests

Liver function tests are used to measure specific enzymes and proteins in your blood. Depending on the test, either higher- or lower-than-normal levels of these enzymes or proteins can indicate a ...

www.nhs.uk/conditions/blood-tests/types

Liver function test. When the liver is damaged, it releases substances called enzymes into the blood and levels of proteins produced by the liver begin to drop. By measuring the levels of these enzymes and proteins, it's possible to build up a picture of how well the liver is functioning.

en.wikipedia.org/wiki/Liver_function_tests

Liver function tests (LFTs or LFs), also referred to as a hepatic panel, are groups of blood tests that provide information about the state of a patient's liver. These tests include prothrombin time (PT/INR), aPTT, albumin, bilirubin (direct and indirect), and others.

www.healthcheckup.com/liver/liver-function-test-normal-range-chart

Liver function tests are nothing but blood tests that help in diagnosing any damage or disease in the liver. The normal levels of the liver function test are 7-56 units/liter for ALT and 10-40units/liters is the range for AST.

liverfoundation.org/for-patients/about-the-liver/the-progression-of-liver...

Liver Function Tests. Liver function tests help your doctor check your liver’s health and detect liver damage. These blood tests measure the levels of certain proteins and enzymes in your blood. Proteins are large molecules that are needed for your overall health.