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.
The recommended humidity level for a house normally ranges from 35 to 45 percent. At this humidity level, it is neither too dry nor too moist, which allows the residents to live comfortably. It also provides the best condition to keep the rooms and furniture from damage.