ALT mainly exists in tissues and cells of liver and heart. When these tissues get sick, the activity of ALT increases.
The general criterion for diagnosing hepatitis is that ALT exceeds the upper limit of the normal reference value by 2.5 times and remains abnormal for more than half a month. Most chronic HBV-infected people have different degrees of immune tolerance. Even if the ALT test result does not reach this value, if it persists for a long time, it can be diagnosed as hepatitis, which often indicates that the condition is serious. Serum ALT determination has the characteristics of high sensitivity and poor specificity in the diagnosis of hepatitis. Many factors other than liver can cause the increase of serum ALT activity, such as malnutrition, alcoholism, cardiomyopathy, cerebrovascular disease, skeletal muscle disease, infectious mononucleosis, pancreatitis and so on. In addition, some drugs and poisons toxic to the liver, such as chlorpromazine, isoniazid, quinine, salicylic acid preparation, ampicillin, carbon tetrachloride, organophosphorus, etc., can also lead to the increase of serum ALT activity.
I suggest you continue to observe for a period of time, and maintain good living and eating habits and work and rest during this period, and then go to the hospital for review.