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www.healthline.com/health/cea

Elevated levels of CEA occur when the CEA is higher than 3 ng/mL. These levels are considered abnormal. People with many types of cancers can have levels that are higher than 3 ng/mL.

www.medicinenet.com/carcinoembryonic_antigen/article.htm

Carcinoembryonic antigen (CEA) is used as a tumor marker. An elevated or rising CEA level indicates cancer progression or recurrence. Read on to learn about the meaning of different CEA blood ranges, the CEA test, and how to know what a healthy blood test range is for CEA.

www.reference.com/health/very-high-cea-level-164a010afb702103

A CEA test result of 20 nanograms per milliliter or higher is a very high level, according to Healthline. A level this high not only strongly suggests the presence of cancer, it can also mean that the cancer has metastasized, or spread to other parts of the body.

csn.cancer.org/node/171818

Here's a quote: Most normal persons have detectable concentrations of circulating CEA. Approximately 85% of adults have CEA levels less than 2.5 ng/mL, while 95% have levels less than 5.0 ng/mL. CEA levels are slightly higher in men than women. The median level is 3.4 ng/mL in men and 2.5 ug/mL in women.

www.medicalhealthtests.com/askquestion/313/what-is-cea-test-normal-range.html

What is cea test normal range? January 27, 2012. Tweet. ... However, nonsmokers, who are constantly in close contact with secondhand smoke may also have high CEA levels, without really having any kind of cancer. For those who have CEA levels higher than 5.0 mcg/l, the test is usually indicative of cancer. However, in some cases, people may have ...

www.canceroz.com/2018/08/what-is-a-high-CEA-level-for-colon-cancer.html

What is the abnormal CEA level? CEA levels are increased when CEA is higher than 3 ng/ML. This level is considered to be abnormal. People with many types of cancer may have levels higher than 3 ng/ML. If you have high marks, it doesn't mean you have cancer. Other causes may result in a level higher than 3 ng/ML.

answersdrive.com/what-is-the-normal-range-for-cea-blood-levels-3134238

Levels of CEA higher than 20 ng/mL are considered very high. If you have CEA levels this high and you also have symptoms of cancer, it strongly suggests the cancer has not been removed successfully after treatment. CEA is usually elevated, but less than 5 ng/mL in people who smoke.

www.cancercompass.com/message-board/message/all,6421,0.htm

I had an elevated CEA level of 6 before my bowel resection surgery in April. It turned out to be a small cancer and they thought they got it all. Then my CEA level went to 13 when I had a blood test 2 months after surgery. I then had a PET scan which didn't show any cancer. I will have another blood ...

www.webmd.com/cancer/cea-tests

CEA is a type of protein in the body. Babies in the womb have high levels of it. After birth, levels drop way down. Healthy adults have a very low level, but some types of cancer can cause it to rise.

www.cancernetwork.com/oncology-journal/cea-monitoring-colorectal-cancer

Given the positive association between an elevated CEA and the stage of colorectal cancer at time of initial presentation, it is natural to expect a higher risk of relapse in patients with an elevated preoperative CEA level. However, an association between CEA levels and disease outcome has been reported even when controlling for disease stage.