The normal range of glutamic transaminase is 0-40 U/L, which is mainly present in the liver, muscle and heart muscle of the human body. If glutamic transaminase is 100U/L, the value is not very high, but the severity of the condition should be judged according to the causes of elevated glutamic transaminase, as follows: 1. Liver causes of elevated transaminase, most commonly viral factors, such as chronic hepatitis B, chronic hepatitis C, or acute hepatitis A, hepatitis E, etc.; heavy alcohol consumption can also lead to alcoholic liver damage; and Drug-related liver damage can also lead to elevated GLTA. 2, heart damage can also lead to elevated glutathione transaminase. Because glutathione is not only present in the mitochondria of liver cells, but also abundant in the heart muscle cells. If the heart muscle cells are involved, it can also lead to elevated glutathione, which needs to be identified together with other indicators, such as the ratio of elevated glutathione and glutathione, as well as whether the cardiac ultrasound and liver ultrasound suggest other causes of liver or heart disease. 3, because skeletal muscle cells contain glutathione, if the skeletal muscle cells are damaged, it will also lead to elevated glutathione transaminase.