Question
The 4-month-old baby had recurrent jaundice for the first three months, with the jaundice mostly resolved by three and a half months. During liver function tests, it was found that the liver function was impaired, leading to a one-week hospital stay for intravenous liver protection therapy. The alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels had returned to normal upon discharge. However, after taking medication at home for a week and undergoing another liver function test, the ALT levels increased again.
Answer
Elevated alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels may indicate liver damage, with potential causes including viral hepatitis, drug-induced liver injury, alcoholic liver damage, fatty liver, autoimmune liver disease, malnutrition, bile duct obstruction, blood circulation disorders, tumors, or genetic diseases. Further tests and diagnoses are needed to determine the specific cause and appropriate treatment measures.