[kristen]

Hi HavahJ,
All I know from what others have told me, (my CA 27-29 rises), but is still in the normal range), If it's active again, it skyrockets. A little variation just could be a cold or something else going on that it would pick up on. I made a deal with my onc. since she doesn't believe in TM's. I said if it spikes, could re recheck it in a month? Yes, to that. She feels that symptoms will show long before the markers go up. From this site, you know that is not always the case. I am not currently on the Bayer Her2 test. I think from being on the study, that when I go for my check-ups that they draw blood for a blood test, I think it's the Bayer test, but nothing confirmed on that. They also draw blood for some heart test.
I would keep an eye on it and if it is out of range, ask your onc. to repeat it the following month to give you some peace of mind. My best to you.