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Labs determine 'normal range' by surveying the people using that lab. For my lab, normal ALT is 6-34 and normal AST is 9-34. ALT is made in the liver so high levels indicate it is being leaked out of damaged liver cells into the bloodstream.
â¢ History of alcohol use. â¢ Increase ALT and AST level on liver function test. â¢ Known case of breast cancer. â¢ Currently taking lisinopril. Normal range for ALT 10-40, AST 10-35. So from your reports it is clear that ALT and AST levels are elevated.ALT and AST elevate in presence of parenchymal damage because of alcohol use and they return in normal range after stoppage of alcohol.Alanine transaminase (ALT), also called Serum Glutamic Pyruvate Transaminase (SGPT) is an enzyme present in hepatocytes (liver cells).levated AST levels are not specific for liver damage, and AST has also been used as a cardiac marker and in certain cancers. The AST/ALT ratio is sometimes useful in differentiating between causes of liver damage (hepatotoxicity).