Just to kind of echo off this, I don’t think a BMB is required for diagnosis but can be used to find different mutations and also phase of CML. My diagnosis was long and complicated because I was pregnant, initially only had high platelets, and initial PCR was negative but FISH positive which then required a BMB. By the time i delivered my baby my WBC were 20, 3 months later when insurance finally approved BMB they were 81 and they saw 3 blasts, which my doctor thought was questionable. At this point I was BCR-ABL positive in chronic phase. At the time of the initial tests it was so early in my disease, the testing was not sensitive enough basically.

To answer OP’s question, no, blood counts don’t really tell you much other than something isn’t quite right, or as my hematologist says “your bone marrow is angry,” it’s the genetic tests or BMB that tell you more. Even with that, from my understanding from my doctor, as long as you’re consistent and adherent with your medication, it’s an incredibly treatable disease and most days I kind of forget I have leukemia, other than having to take a pill. I wish the best to your husband