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What will doctors do with this test?
Zero levels of ALT in the blood are considered normal, and any measure under 45 IU/L is also expected. A slight increase is usually repeated because most types of hepatic injury feature higher levels.
For example, in chronic hepatitis, ALT is usually increased 4 times its normal value. In acute hepatitis, ALT levels can be increased more than 10 times their normal values. Hepatotoxic drugs and highly dangerous substances can increase ALT levels up to 100 times their normal value. In these cases, ALT levels remain very high for 1 or 2 months after recovering from the disease or liver condition, but some patients take up to 6 months to get a normal measure once again.
Slight elevations can also be seen in alcoholic patients or an obstruction of the bile duct.
