Ah. Yes, in that context, “molecular” means “genetic tests that analyze DNA sequences instead of, say, chromosome malformation or the presence of mutated proteins.” “Molecule isolate nucleic,” I think, is actually the lab procedure of extracting and isolating DNA; it’s sample prep, not a test in its own right (I think). Or, it might be a charge for the isolate standards that samples are compared against. Molecular diagnostic testing looks for certain specific diseases or conditions that have well-characterized mutations in known regions; the mutation scan, I imagine, will examine the entire genome for things that “ain’t right,” but may not be able to state unequivocally whether a disease condition exists, or what, if any, it is.
These issues will be discussed during a genetic counseling session, which they will probably be calling to schedule fairly soon. I’m not in that industry, so TTFWIW.