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Liver Blood Tests Topic Guide

Liver Blood Tests Liver Blood Tests:

Liver blood tests are used to check the levels and function of liver enzymes in the blood called AST and ALT or aminotransferases in the blood. Symptoms of elevated or high liver enzymes in the blood include fever, abdominal pain, poor appetite, itching, and nausea.

Normal levels of liver enzymes in blood are caused by liver diseases caused by drugs, for example, acetaminophen (Tylenol), pain medications, and statins. Less common causes of abnormal levels of ALT or AST levels in the blood are alcoholic and non-alcoholic liver diseases (NASH), hepatitis, and alcoholism.

Normal levels of ALT ranges from about 7-56 units/liter, and 10-40 units/liters for AST. Elevated (high) and low liver enzymes elevated levels of AST and ALT may signify the level of liver damage the person has. A blood sample is sent to the laboratory for measurement. Usually, you doctor will have the results interpreted within a few hours to days.

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. Less common causes are NASH, hepatitis, and alcoholism.

Liver Blood Tests Topic Guide - Visuals

Liver Blood Tests Topic Guide - Medications and Vitamins

Medications:

atorvastatin Atorvastatin

Atorvastatin is in a group of drugs called HMG CoA reductase inhibitors, or "statins." Atorvastatin reduces levels of "bad" cholesterol (low-density lipoprot...learn more »

diclofenac Diclofenac

Diclofenac is a nonsteroidal anti-inflammatory drug (NSAID). This medicine works by reducing substances in the body that cause pain and inflammation...learn more »

fosinopril Fosinopril

Fosinopril is an ACE inhibitor. ACE stands for angiotensin converting enzyme...learn more »

aspirin (oral) Aspirin (oral)

Aspirin is a salicylate (sa-LIS-il-ate). It works by reducing substances in the body that cause pain, fever, and inflammation...learn more »

isoniazid Isoniazid

Isoniazid is an antibiotic that fights bacteria...learn more »

carbamazepine (oral) Carbamazepine (oral)

Carbamazepine is an anticonvulsant. It works by decreasing nerve impulses that cause seizures and pain...learn more »

acetaminophen (oral/rectal) Acetaminophen (oral/rectal)

There are many brands and forms of acetaminophen available. Not all brands are listed on this leaflet...learn more »