Hello,
I concur with what David has put down regarding the term "undetectable" to translate a PCR test result.
To me, the word "undetectable" has a close link with the word ""impossible" in my vocabulary. Mostly, because it sounded nominal and qualitative rather than a quantitative analysis to interpret PCR result. Thus, don't get too hung up by it in any way!
The important thing to remember is that as long as you did everything right within your willpowers in the management of your CML such as, TKI adherence, eating right, exercise proportionally and still enjoy all the best things in life with your loved ones, than forget about the few "0.00 something" difference in results. Also, until the bio-mechanical scientists have FINALLY invented a RTPCR testing technology to read with margin of error of absolute 0% and confidence interval of 100%, and/ or at least with greater sensitivity than the incumbent 0.0032% to analyze test sample, then it's not worth batting an eyelash over slight elevation in your current result. Which by the way is still a number to be proud of!
Furthermore worrying about it will only encourage the production of stress hormones which in turn upset all sorts of metabolic balances in your body. Mind you, there is a direct correlation between mental stress and increase in blood glucose level in the body which goes on to trigger off-target inflammations and set off diabetes mellitus, etc. Hence, whichever way you look at it, stress and worries only guarantee more damages to your present situation.
So, until your hematologist start to voice his or her concerns about your result, push it to the toxic pile (out of sight out of mind, literally) and continue to live your life well and positively until kingdom come!
Best Regards,
Ellie.