Is an AST/ALT ratio of 1.0 U/L normal?
May 10, 2023
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
AST/ALT usually refers to aspartate aminotransferase and alanine aminotransferase. An AST/ALT level of 1.0 U/L is considered normal. Normally, the reference range for aspartate aminotransferase (AST) is 0–37 U/L, and for alanine aminotransferase (ALT) it is 0–40 U/L. Therefore, an AST/ALT value of 1.0 U/L falls within the normal range, indicating normal liver function.
AST/ALT usually refers to aspartate aminotransferase and alanine aminotransferase. An AST or ALT level of 1.0 U/L is within the normal range, so there is no need for excessive concern—regular monitoring is sufficient. The detailed explanation is as follows:
Aminotransferases include aspartate aminotransferase (AST) and alanine aminotransferase (ALT). When liver cells become inflamed, poisoned, or necrotic, they may be damaged, leading to the release of aminotransferases into the bloodstream and thus elevating their levels. However, under normal circumstances, the reference range for AST is 0–37 U/L, and for ALT it is 0–40 U/L. Therefore, an AST or ALT reading of 1.0 U/L falls well within the normal range, indicating normal liver function.
It is recommended to maintain adequate rest in daily life, avoid alcohol consumption, staying up late, and overexertion, all of which could potentially increase aminotransferase levels.
