Lower levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are good. These indicate that the liver is functioning properly, states WebMD. Liver problems may be suspected if ALT and AST levels are... More » Health Medical Ranges & Levels

The normal range for AST is between 10 and 40 units per liter, and the normal range for ALT is 7 to 56 units per liter, according to eMedicineHealth. AST and ALT measurements are part of a routine liver enzyme test used ... More » Health Medical Ranges & Levels

Treatment for high AST and ALT varies greatly and is entirely dependent on the cause, states Cleveland Clinic and Healthline. When high levels are detected, further testing to determine the cause is common. High AST and ... More » Health Medical Ranges & Levels
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Typically, low alanine aminotransferase (ALT) levels in the blood are considered normal, and it is high levels of ALT that should be cause for concern, according to Lab Tests Online. High ALT levels can be indicative of ... More » Health Medical Ranges & Levels

Normal levels on ALT blood tests range from 10 to 40 international units per liter, while scores between 10 and 34 international units per liter are normal for AST tests, states MedlinePlus. The tests measure the amount ... More » Health Medical Ranges & Levels

Reducing ALT or AST level is not possible in most cases, as elevated ALT levels normally indicate liver damage and elevated AST levels indicate tissue damage or damage to an organ such as the brain or heart, states WebMD... More » Health Medical Ranges & Levels

Elevated aspartate aminotransferase (AST) levels indicate diseased or damaged organs in the body. AST is found in the liver, heart, pancreas, kidneys, muscle tissue and red blood cells, according to WebMD. The higher the... More » Health Medical Ranges & Levels