If you look at my signature, you will see that my CEA rose during chemo. When I was first diagnosed my CEA was 8.6 and went down to 1.2 after surgery. It then rose during chemo and levelled off after treatment was over.
My oncologist said he doesn't usually test CEA during chemo, because inflammation can cause it to rise. The only reason I was tested was because halfway between my treatment, an unrelated scan showed something on my liver (which was subsequently determined to be benign).
Your husband is almost at the end of his treatment, so hopefully his will start going down.
May 2015 right hemi CC cecum
removed terminal ileum, illeocecal valve, appendix, cecum, ascending colon, omentum
stage 3b T3 N1b MX 2/27 nodes (isolated tumour cells in 1 add'l node)
PNI - positive
LVI - positive
Folfox 12 sessions (without oxi for 11 & 12)
Neulasta with 3-12 due to low WBC count
CEA at diagnosis 8.6
CEA after surgery 1.2
CEA during chemo 4.6 / 3.3 / 2.3
CEA after chemo 1.5 / 1.2 / 1.2 /1.2 /1.2 / 1.4 / 1.1 / 1.2 / 1.9 / 1.3 / 1.6 /1.4 /1.5