Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.
There are certain factors can determine what humidity level is the right one for your house. The simple answer is that a house humidity level should be somewhere between 20% and 40%. One factor that can pinpoint where your home humidity level should be is the outside temperature. As the temperature outside decreases then there is a higher risk of condensation happening inside your walls and on you windows.