Normally, levels of AST in the blood are low. 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.
A Baltimore mechanic named Charles Moncky invented the monkey wrench around 1858. The tool was originally named by using a âpurposeful misspellingâ of its inventorâs name, according to the Ferris State University Jim Crow Museum.
Confidence votes 13. Jack Johnson, the famed boxer, first black to become world champion boxer who was actually imprisoned for travelling across state lines with a woman (who later became his wife), invented a wrench so different from Stillson's 1870 pipe wrench it was granted a patent in 1920.