Oncological examinations

July 17, 2017

Oncological examinations: general analyzes, determination of results, causes of diseases.

Cancer is not yet fully understood, but there are many studies in this field aimed not only at treatment, but also at recognizing this deadly ailment. The most important task is the prevention of oncology, which is impossible without modern research methods.

What are the blood tests for cancer, what do they mean, and how to recognize the blood test?

General blood analysis:

Blood tests for cancer indicate the possibility of cancer in the body and indicate the location of the tumor, but often do not provide a basis for a final diagnosis. Determine which blood test shows an oncology and what blood test shows the cancer can only be through additional studies. It is known that a blood test can detect cancer even at the earliest stages. The change in the blood test for oncology made at different stages of the disease will help to track the dynamics of the disease.

Causes of the disease:

There are some causes and signs that can contribute to the development of cancer, in the first place, it can be:

  • Genetics;
  • Living environment;
  • Lifestyle.

To find out what blood test shows oncology, it is worth to consult a specialist. Do you need additional tests or tests – the doctor will decide, after receiving his results.

Clinical blood test:

A good blood test for cancer is the absence of cancer cells, but a general blood test for oncology can show the same parameters as in other diseases. Therefore, it is often impossible to state with certainty that a general blood test shows oncology. To clarify the situation, other studies are being carried out.

The general analysis of blood in cancer consists of the following indicators:

  • Leukocyte blood formula;
  • Hemoglobin level;
  • erythrocyte sedimentation rate.

Clinical analysis of blood in oncology is characterized by the following signs: increased level of leukocytes and ESR, but the level of hemoglobin is lowered. Patients even appoint a transfusion of donor blood to increase hemoglobin. However such indicators can be shown and at other illnesses, therefore decoding of the analysis of a blood at an oncology does not give full confidence of the diagnosis.

An important role in the diagnosis is the general condition of the patient. If there are no serious illnesses, the patient is active, fully fed, does not suffer from bad habits (smoking, drinking alcohol), capable of causing cancer, then most likely it is a benign tumor.

A general blood test determines the cancer already in the early stages. Having specified the diagnosis by means of additional methods of research, it is necessary to start treatment as soon as possible, not allowing further development of the tumor.

One of such methods of research is the biochemical analysis of blood in oncology.

Blood chemistry

Cancer cells:

How to recognize a blood test and what tests can show cancer? The easiest way to determine the oncology for blood analysis, or with the help of oncomarkers. Oncology are proteins and antigens formed by various types of cancerous tumors. But some of these substances are formed in a healthy body, including some other diseases. Therefore, even if a biochemical blood test shows an oncology, then it is not worth despairing quickly. Often to confirm the diagnosis – other studies are required, such as biopsy or ultrasound. What blood tests for cancer should be given specifically in your case – the doctor will determine.

Definition of cancer cells:

The content of oncomarkers in the blood is individual, and only a significant change in the blood test for cancer can show the doctor the full picture. It is necessary to follow the development of the patient’s condition, i.e. To understand whether the number of oncomarkers will change by the time of the next study. This means that the patient will have to take blood tests repeatedly.

You can find out more about genetic studies, types and methods of these studies from this article. And to receive the information on inspection of eyes – here.


  • PSA;
  • CA 125;
  • CA 15-3;
  • CA 19-9;
  • REA.

The formation of the PSA enzyme in the prostate gland increases with age. If he reached 30, then to the question whether the blood test shows an oncology, it is possible to answer with confidence – yes. If the indicators are below 30, but above the norm, an additional study is prescribed.

The elevated protein content of CA 125 is an alarming indicator in the analysis of blood in ovarian cancer and in endometrium of the uterus. For accurate diagnosis, you need vaginal examination and ultrasound.

The presence of CA 15-3 is a poor indicator of blood analysis for breast cancer, and in this case the diagnosis is unambiguous. After the completion of the study, you should immediately begin treatment.

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