I suppose that's the unfortunate thing about court orders - the consequences or loopholes aren't often realised until after they've already been made.
If they were made by consent, it seems odd to me that he would falsify tests, but you never really know, do you? It is a fair expectation that a doctor or pathologist sign the results on a their letterhead, but outside of that, you may simply have to accept the facts as they appear until your ex makes some grave error and you have grounds to seek new orders, at which time you can subpoena the pathologist/doctor for documents.