All this in was very enlightening. I don’t know about any of those tests except the CEA. I will comment specifically on that as to its predicting. I had Stage 3c right side colon cancer in summer of 23. I did not have any signs I had it and my CEA was completely normal. We found it due to other cancer I had in the uterus which was found during a hysterectomy to avoid a precancer turning into cancer. I was anemic and they wanted to know why. The Colonoscopy showed the bleeding mass and 8 of 43 nodes were infiltrated. I did folfox, after surgery and CEA numbers did not change. 8 months after treatment it was back in my vaginal cuff and pelvic nodes and left oblique. Still no signs in the blood. So all that is to say that with right side CRC which is more aggressive, especially in women, its more of when it will come back and we can’t depend on bloodwork to give us clues. I do wish I had known about those tests. My Dr did some testing to see what treatments outside the reg might be used. But those don’t sound familiar.