Between liver tests for alt and ast, how many weeks should i wait after giving up alcohol to see if the liver has healed. is 2 weeks enough?

It depends: Anyone who drinks heavily (6-pack of beer, a bottle of wine, or pint of liquor a day) may develop abnormally high liver enzymes alt and ast. It means the alcohol made your liver fill up with fat, and it's not working right. The same thing can happen if you're obese. Stopping drinking usually resolves the enzyme elevations in 1-4 weeks, but sometimes it means your liver has been damaged permanently.

Highly variable: This depends upon the extent of damage to your liver, the duration of your alcoholism and the underlying state of your liver to begin with. On top of that, if you are going to be using the alt and ast values improving as a reason to begin drinking again, this is of no value. Chronic hepatic damage leading to cirrhosis can occur with minimal elevations of enzymes or none at all.