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Doctors can check liver function using a blood test called the liver panel, explains Lab Tests Online. The liver panel measures the amounts of bilirubin, albumin, total protein and liver enzymes in the blood, reports WebMD.


Because there are various liver function tests available, there are different normal levels for each specific test. For example, some liver tests can include ALT, ALP, AST, albumin and total protein. For adult men, the normal level for ALT is given as being between 7 an...


The numbers in a liver function test refer to blood levels of total protein, albumin, bilirubin and liver enzymes, according to WebMD. High or low levels can indicate the presence of liver damage or disease.


Doctors perform liver function tests by obtaining a blood sample from the patient in a hospital or specialized testing facility, explains Healthline. A nurse cleans the patient's skin prior to the test to prevent contamination by microorganisms and then wraps a pressure...


The most common causes of elevated liver enzymes include heart failure, alcohol use, certain prescription and over-the-counter medications, hepatitis and obesity, according to Mayo Clinic. Other causes include celiac disease, cirrhosis, liver cancer, pancreatitis and hy...


Common causes of elevated liver test levels include alcohol consumption, obesity, nonalcoholic fatty liver disease and heart failure, according to Mayo Clinic. Hepatitis A, hepatitis B and hepatitis C can also cause increased liver levels, as can some medications, inclu...


The primary functions of the liver are to process nutrients from food, produce bile to aid in digesting food, filter toxins and waste from the bloodstream, and produce proteins. The liver is the heaviest organ in the body and one of the largest.