These are results for inflammation markers they will generally also give you a normal range. As far as children go I think anything 10 and under is considered normal but I believe it is a higher number for adults not sure exactly what it is though and if they are basing it on pediatric or adult
I believe anything under 1.0 on CRP is considered in normal again I'm only basing this on child levels but again it should give you a normal range.
Given that they are testing for Imuran it would not be surprising to see some level of inflammation. You really need to look at all levels to get a complete picture though WBC, RBC etc.
One tells more long term inflammation levels and one is more a short term say you were had a cut or something that would raise the short term more then the long term if you understand what I mean.
I'm sure someone who knows more then I will be along shortly if they haven't already answered you while I was typing.