One of the worst diagnoses for the patient and his relatives is cancer. However, to cure this disease is still possible, if detected in a timely manner, at stages 1, 2, 3. This is helped by modern diagnostic methods. One of them is the reka oncomarker. What does this analysis show and how reliable are its results?
A tumor marker is a protein that makes cancer cells. For different types of oncology, the set of such "tags" is different. Markers have different sensitivities. If some of them are particularly useful for identifying low-quality education, others can only be used to detect relapses and determine the effectiveness of treatment.
Cancer fetal antigen: an analysis that finds cancer
Women often suffer from constipation and other bowel problems. If the symptoms of the disease seem suspicious to the doctor, then he may direct the patient to be tested for the CEA tumor marker. What is this analysis?
It is used in the evaluation of colorectal cancer, mammary glands, cervix and other organs, therefore it is among the so-called female oncotester. In addition, it may indicate a high probability of the presence of pathologies such as cancer of the lungs, thyroid, liver, pancreas, bladder. This tumor marker is non-specific. Speaking in simple language, he will simply indicate that cancer cells have appeared in the body, but he won’t tell me exactly which organ has been affected.
The main purpose of CEA oncomarker is to confirm or refute colon cancer detected by other diagnostic methods.
If a person is an active smoker, if he has benign growths in the digestive tract organs and lungs, then a limited amount of this protein may be present in his blood. Analysis of bad or good: let's talk about the norm
To talk about pathology, you need to know which indicators are normal, that is, they indicate that a person is not sick with cancer. How to evaluate the result, which gave cancer marker? The norm in women should be:
- for non-smokers - from 0.0 to 0.5 mg / ml;
- for smokers - from 0.0 to 10.0 mg / ml.
If the patient has passed this analysis, and it turned out that the norms are significantly exceeded, this is not a reason for tears and depression, but a first signal to action. She should urgently go through additional diagnostics.
The most unfavorable factors for increasing CEA
If the embryonic antigen is elevated, then pay attention to the symptoms of diseases and general health, a sharp weight loss, pain and its localization, problems with the stool and digestion in general.
There are many reasons why the tumor marker is increased. What does the increase in the level of this protein-carbohydrate compound show? It can confirm that malignant growths are developing in the following parts of the body:
- large intestine;
- mammary glands;
- there is metastasis of bone tissue and liver.
If the analysis showed that there is 10 µg / ml CEA in the blood, then it is not certain that a person has colorectal cancer. In most cases, it is still a benign tumor. Onkotest REA is not highly sensitive. Therefore, it is not able to detect a tumor in the initial stages. So, for the diagnosis of breast cancer at a stage when there are no characteristic symptoms of this disease, the tumor marker rea is not used. Decoding analysis in general terms looks like this. If we take as a guideline the norm of 5 µg / ml, then at the first stage of cancer this value will be exceeded by 25%, at the second - by 30%, at the third - by 45%, and at the fourth (inoperable) - by 65%. Therefore, for more than 70% of cancer patients in the last stage, an increased level of this protein in the blood is characteristic.
To clarify the diagnosis with increased CEA, other tumor markers are used (SCC, HE4, CA-125, CA-15-3).
Norm is exceeded, but not oncology
The increased concentration of CEA oncomarker does not bode well, but it is not always associated with cancer. Non-oncological reasons for the increase in the content of such a protein are:
- inflammation (or emphysema) of the lungs;
- renal failure;
- ulcerative colitis;
- Crohn's disease;
- cirrhosis of the liver;
- hepatitis (chronic);
- benign neoplasms in the intestines;
- cystic fibrosis.
Less dangerous reasons for changes in REA values
The direction to donate blood to CEA is not received by healthy people. This diagnosis is carried out if there are symptoms related to the above pathologies. Operated patients who have cancer confirmed should donate blood for this tumor marker. It helps to track the dynamics of the disease and detect relapses.
But you should know that high CEA (which ideally should not be in general at adults) can be found in relatively healthy people. This applies primarily to those who smoke a lot, abuse alcohol, and have a drug addiction. How to find out what exactly caused the growth of REA? If a small amount of this protein is found in the blood, repeat the analysis. We are not talking about oncology if its content remains the same or has decreased.
To pass the analysis without a referral will fail. Issuing it is the competence of specialists who decide on the need for such a diagnosis. For the survey will have to pay from 500 to 850 rubles.
So that you are in no hurry to diagnose yourself on the basis of what is recorded as a result of an analysis on CEA, it is important to remember: the concentration of this protein may increase for reasons that have nothing to do with cancer. If there is something wrong with your analyzes, ask your doctor what this increase means, then investigate and begin treatment. Today in the arsenal of medicine there are ways that give even cancer patients a chance.