what is ast blood test
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Glossary What It Is. An aspartate aminotransferase (AST) test is often part of an initial screening for liver disease. The liver plays a variety of important roles in the body: It stores fuel from food, makes proteins, and helps remove toxins from the body. The liver also makes bile, a fluid that helps in digestion.
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Aspartate transaminase Aspartate transaminase. Aspartate transaminase (AST) or aspartate aminotransferase, also known as AspAT/ASAT/AAT or serum glutamic oxaloacetic transaminase (SGOT), is a pyridoxal phosphate (PLP)-dependent transaminase enzyme (EC 2.6.1.1) that was first described by Arthur Karmen and colleagues in 1954.
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- Three types of AAT tests are available. One or more of these may be used to evaluate an individual: 1  Alpha-1 antitrypsin measures the level of the protein AAT in blood.  Alpha-1 antitrypsin phenotype testing evaluates the amount and type of AAT being produced and compares it to normal patterns.
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- Alanine Transaminase (ALT) is an enzyme mainly found in your liver. The ALT test measures the level of ALT in your blood. Consistently high levels of ALT in your blood can be a sign of liver damage. Aspartate Transaminase (AST) is an enzyme found in large amounts in your liver and other parts of your body.
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AST/ALT ratio The AST/ALT ratio is the ratio between the concentrations of the enzymes aspartate transaminase (AST) and alanine transaminase (ALT) in the blood of a human or animal. It is measured with a blood test and is sometimes useful in medical diagnosis to differentiate between causes of liver damage, or hepatotoxicity.he AST/ALT ratio is the ratio between the concentrations of the enzymes aspartate transaminase (AST) and alanine transaminase (ALT) in the blood of a human or animal. It is measured with a blood test and is sometimes useful in medical diagnosis to differentiate between causes of liver damage, or hepatotoxicity.
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Aspartate Aminotransferase (AST)  [en EspaÃ±ol] Aspartate Aminotransferase (AST) An aspartate aminotransferase (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells, liver, heart, muscle tissue, pancreas, and kidneys. AST formerly was called serum glutamic oxaloacetic transaminase (SGOT). Low levels of AST are normally found in the blood. When body tissue or an organ such as the heart or liver is diseased or damaged, additional AST is released into the bloodstream. The amount of AST in the blood is directly related to the extent of the tissue damage. After severe damage, AST levels rise in 6 to 10 hours and remain high for about 4 days. The AST test may be done at the same time as a test for alanine aminotransferase, or ALT.
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- The alanine aminotransferase (ALT) test is typically used to detect liver injury. It is often ordered in conjunction with aspartate aminotransferase (AST) or as part of a liver panel to screen for and/or help diagnose liver disease.
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SGPT Blood Test drawing blood image by Pix by Marti from Fotolia.com. An SGPT blood test is a test used to measure the amount of the enzyme glutamate pyruvate transaminase (GPT) in blood. This enzyme is found in cells of the heart, kidneys, muscles and pancreas in small amounts, but it is in much greater concentration in the liver. This test is sometimes called ALT.
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- AST and ALT are considered to be two of the most important tests to detect liver injury, although ALT is more specific to the liver than is AST. Sometimes AST is compared directly to ALT and an AST/ALT ratio is calculated.
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- How is it used? Alpha-1 antitrypsin (AAT) testing is used to help diagnose alpha-1 antitrypsin deficiency as the cause of early onset emphysema, especially when a person does not have obvious risk factors such as smoking or exposure to lung irritants such as dust and fumes.
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AST AST (aspartate aminotransferase) is an enzyme found in high amounts in liver, heart, and muscle cells. It is also found in lesser amounts in other tissues. This article discusses the test to measure the amount of AST in the blood.
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What does AST in a lipid panel mean? AST or aspartate aminotransferase is a test of liver function. In roughly 1 to 2% of patients starting statin therapy, AST and ALT (alanine aminotransferase, another test that monitors liver function) may increase.
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- An aspartate aminotransferase (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells, liver, heart, muscle tissue, pancreas, and kidneys. AST formerly was called serum glutamic oxaloacetic transaminase (SGOT).n aspartate aminotransferase (AST) test is done to: 1  Check for liver damage. 2  Help identify liver disease, especially hepatitis and cirrhosis. 3  Check on the success of treatment for liver disease. 4  Find out whether jaundice was caused by a blood disorder or liver disease. 5  Keep track of the effects of medicines that can damage the liver.
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Summit Medical Group Web Site AST (SGOT) Test. This blood test measures an enzyme called aspartate aminotransferase (AST). Enzymes are chemicals that help the cells of your body work. AST is found in red blood cells, liver cells, and muscle cells, including the heart. It is released into the blood when these cells are damaged.
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What Is an Aspartate Aminotransferase (AST) Test? The aspartate aminotransferase (AST) test is a blood test that checks for liver damage. Your doctor might order this test to find out if you have liver disease and to monitor your treatment. Your liver is an organ that has many important jobs. It makes a fluid called bile that helps your body digest food.
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- An aspartate aminotransferase (AST) test is done to: 1  Check for liver damage. 2  Help identify liver disease, especially hepatitis and cirrhosis. 3  Liver disease may produce symptoms such as pain in the upper abdomen, nausea, vomiting, and sometimes jaundice. 4  Check on the success of treatment for liver disease.
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Alanine Aminotransferase (ALT) (SGPT) (GPT) (Liver Function) Blood Test Alanine Aminotransferase (ALT) (SGPT) (GPT) (Liver Function) Blood Test. The ALT level is tested to look for and evaluate damage to the liver. This test measures the amount of an enzyme called glutamate pyruvate transaminase (GPT) in your blood. This enzyme is found in many body tissues in small amounts, but it is very concentrated in the liver.
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Aspartate Aminotransferase (AST)  [en EspaÃ±ol] An aspartate aminotransferase (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells, liver, heart, muscle tissue, pancreas, and kidneys. AST formerly was called serum glutamic oxaloacetic transaminase (SGOT). Low levels of AST are normally found in the blood. When body tissue or an organ such as the heart or liver is diseased or damaged, additional AST is released into the bloodstream.
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AST Aspartate aminotransferase (AST) catalyzes the transfer of the alpha amino group of aspartic acid to alpha-ketoglutaric acid, resulting in the formation of oxaloacetic acid and glutamic acid. Both aminotransferases (ALT and AST) require pyridoxal 5′ phosphate (P5P) as an essential cofactor for maximum enzyme activity.
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Aspartate transaminase AST catalyzes the reversible transfer of an α-amino group between aspartate and glutamate and, as such, is an important enzyme in amino acid metabolism. AST is found in the liver, heart, skeletal muscle, kidneys, brain, and red blood cells. Serum AST level, serum ALT (alanine transaminase) level, and their ratio (AST/ALT ratio) are commonly measured clinically as biomarkers for liver health. The tests are part of blood panels.
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What Is an Alanine Aminotransferease (ALT) Test? The alanine aminotransferase (ALT) test is a blood test that checks for liver damage. Your doctor can use this test to find out if a disease, drug, or injury has damaged your liver. Your liver does a lot of important things for you: It makes a fluid called bile that helps your body digest food. It removes waste products and other toxins from your blood.
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AST (SGOT) Hepatitis C. AST, or aspartate aminotransferase, is 1 of the 2 liver enzymes.. It is also known as serum glutamic-oxaloacetic transaminase, or SGOT. AST is a protein made by liver cells. When liver cells are damaged, AST leaks out into the bloodstream and the level of AST in the blood becomes higher than normal.
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What does AST (SGOT) stand for on the clinical chemistry blood test report? AST (aspartate aminotransferase), or SGOT (serum glutamic-oxaloacetic transaminase) as it is also referred to, is one of the many enzymes (proteins) that reside in the cells of your body and assist in the chemical reactions taking place in your body.
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- AST (SGOT) and ALT (SGPT) are sensitive indicators of liver damage or injury from different types of diseases. But it must be emphasized that higher-than-normal levels of these liver enzymes should not be automatically equated with liver disease. They may mean liver problems or they may not.