C reactive protein is a non-specific marker of inflammation and can mean many things. What is the medical history of this person?
So anyone who has chronic infections will have a high level of inflammation and so it is not surprising that CRP (C-reactive protein) levels are elevated. Was this test drawn in part of a workup to identify a diagnosis? Is there any family history of diseases such as cystic fibrosis? Is there a family history of Primary Cilliary Dyskinesia? Have genetic studies been done?
How long have these fevers of 40 been going on? And was that low white count found at the same time? Do you know what his lymphocyte count was before? Both the fevers and the low white count are unusual and would suggest either an infectious or inflammatory process. Do you know if the blood smear has ever been examined?
Is he from this country? Has he traveled anywhere?
How long have these fevers gone on? Have there been problems for years? Since birth?
Is there any family history of any medical problems? Genetic diseases?
Was there any complication with the pregnancy or around the time that he was born? Did he ever need to be in the hospital?