Blood test for constipation from colon cancer?

No good test. There is no good blood test for either constipation or colon cancer. In late colon cancer cea levels are usually elevated, but there are other causes of elevated cea.

Related Questions

19, male having diarrhea right after normal stool, watery, blood test fine, no blood or constipation, can it be colon cancer I'm scared!!!

Don't be scared. Be smart. Go to a doctor and get it sorted out. Probably not colon cancer, but it is a possibility. It is rarely seen in young people such as yourself. We can't give you any more advice than that. You need to be seen, examined and evaluated. It's the only way to ease your mind. Read more...
Relax. Colon cancer doesn't behave this way and is very, very rare in 19 year olds. Diarrhea after a normal BM is not unusual and often depends on diet, anxiety, etc. If it persists, see your primary care provider for an evaluation. Thanks for trusting HealthTap! Read more...

I have stage 2 colon cancer and just had a colectomy the oncologist is performing an expensive blood test to see next steps what is this test?

Ask the oncologist. Many different tests available - ask your oncologist. Read more...
Just ask. May be a cea level. This is a marker commonly used to follow colorectal cancer patients to indicate a possible recurrence. In sure your oncologist would be happy to explain it to you. All you have to do is ask. Best if luck. Hope this helps! Read more...