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www.medicinenet.com/liver_blood_tests/article.htm

AST and ALT serum levels in some liver conditions can range anywhere from ten times the upper limits of normal to thousands of units/liter. The highest levels of AST and ALT are found with disorders that cause rapid death of numerous liver cells (extensive hepatic necrosis).

www.mayoclinic.org/symptoms/elevated-liver-enzymes/basics/definition/sym-20050830

Alanine transaminase (ALT) Aspartate transaminase (AST) Alkaline phosphatase (ALP) Gamma-glutamyl transpeptidase (GGT) Elevated liver enzymes may be discovered during routine blood testing. In most cases, liver enzyme levels are only mildly and temporarily elevated. Most of the time, elevated liver enzymes don't signal a chronic, serious liver ...

www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/hepatology/guide-to-common...

Serum aminotransferase levels—ALT and AST—are two of the most useful measures of liver cell injury, although the AST is less liver specific than is ALT level. Elevations of the AST level may also be seen in acute injury to cardiac or skeletal muscle. Lesser degrees of ALT level elevation may occasionally be seen in skeletal muscle injury or ...

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

www.medhelp.org/posts/Liver-Disorders/What-are-dangerous-ALT-and-AST-levels/...

At the beginning of July my AST and ALT were normal, and they have been normal all my life. In mid-August my AST was 80 and ALT was 146. Docs thought that was a lab error, so I had it rechecked a month later. Both levels were even higher. I've had it checked weekly since then and they are higher each week.

www.verywellhealth.com/liver-enzymes-1759916

Liver enzymes are substances produced by the liver that can be measured with a blood test. Any elevation in an enzyme level may be a sign of a liver problem, and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are two of the enzymes central to such an investigation. When used comparatively, AST and ALT can help identify liver toxicity, liver disease, or liver damage.

www.webmd.com/a-to-z-guides/alanine-aminotransferase-test

AST is another liver enzyme. As with ALT, the levels of AST in your blood rise if your liver is damaged. Comparing ALT with AST levels gives your doctor more information about the health of your ...

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 liver function test normal values are 7-56 units/liter for ALT and 10-40units/liters is the range for AST. You can also find the liver function normal range chart in this article.

en.wikipedia.org/wiki/AST/ALT_ratio

The AST/ALT ratio is the ratio between the concentrations of the enzymes aspartate transaminase (AST) and alanine transaminase, aka alanine aminotransferase (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.. Most causes of liver cell injury are associated with ...

www.healthline.com/health/how-to-lower-alt

The results showed that ALT levels decreased as folate levels increased. To help lower ALT levels, consider adding more folate-rich foods to your diet, such as: leafy greens, including kale and ...