CBC stands for “complete blood count”. AST is a completely separate test. AST and ALT are liver enzymes that are elevated when there is damage to the liver such as liver problems due to medications, alcohol, gall bladder problems. A low AST has no clnical signficance. Basically, you can ignore it.
About Alan Matsumoto, M.D.
Part-time Faculty, Division of Rheumatology
Johns Hopkins University