If you have ever been frustrated while writing, you may have dropped your pen â or pushed away your keyboard â and stared angrily out the window, thinking, How will I ever do this?.
Liver function tests are blood tests used to help diagnose and monitor liver disease or damage. The tests measure the levels of certain enzymes and proteins in your blood.Some of these tests measure how well the liver is performing its normal functions of producing protein and clearing bilirubin, a blood waste product.Other liver function tests measure enzymes that liver cells release in response to damage or disease.Abnormal liver function test results don't always indicate liver disease. Your doctor will explain your results and what they mean.1  Why it's done.ther liver function tests measure enzymes that liver cells release in response to damage or disease. Abnormal liver function test results don't always indicate liver disease. Your doctor will explain your results and what they mean. 1  Why it's done.
Additional tests that may be used to evaluate liver function include 2 1  : Gamma-glutamyl transferase (GGT): This test measures the amount of the enzyme GGT in the blood. 2  Higher than normal levels may indicate liver or bile duct injury.iver function tests (also known as LFTs or LFs) include liver enzyme readings. A single blood sample may include liver function testing for the following 1 1  : Alanine transaminase (ALT): An enzyme that helps metabolize protein.