is my lab operating on a wrong
range, because their normal ranges are more than double of those recommended by WHO? For example my last ALT level was 37U/L, which is well below the upper limit of normal according to my local lab; but according to the WHO, it is a bit higher than the upper level. So I'm confused what to believe.
PS: on the WHO recommendations I have also read that local lab ranges should be applied as regards ALT.