From what I can tell - different Countries seem to have different reading levels for each blood result.
I wish the Countries could all get on the same page so that then we are all on the one page as well.

Take creatinine levels for example:-
In Australia the normal levels are between 45-85 (mine are 70)
USA/Canada - normal levels are between 0.5 and 1.1 for females and 0.6 and 1.2 for males (10 or more in Adults means severe kidney impairment)
(not sure about Europe and UK)

Therefore, if a chart is made with all of the average levels etc, it will not be correct, for this being a global forum.