can a blood test determine breast cancer?
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Summary: Breast cancer could be detected up to five years before there are any clinical signs of it, using a blood test that identifies the body's immune response to substances produced by tumor cells, according to new research.
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['Complete blood count (CBC). This common blood test measures the amount of various types of blood cells in a sample of your blood. ... ', 'Blood protein testing. ... ', 'Tumor marker tests. ... ', 'Circulating tumor cell tests.']
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When your doctor orders blood tests during a routine check-up, the goal is to learn how well your body is working and to diagnose diseases such as diabetes or heart disease that might not have obvious symptoms. A blood test is like a gauge, revealing measures of disease inside your body.
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When looking for signs of stomach cancer, a doctor may order a blood test called a complete blood count (CBC) to look for anemia (which could be caused by the cancer bleeding into the stomach). A fecal occult blood test may be done to look for blood in stool (feces) that can't be seen by the naked eye.
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While some women diagnosed with ovarian cancer have elevated levels of the CA 125 protein, the associated blood test is not accurate enough for ovarian cancer screening, as many noncancerous conditions can increase the CA 125 level. Ovarian cancer is hard to detect in its early stages due to its vague symptoms.
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The blood sample is collected inside a special vial that contains a chemical to prevent the blood from clotting. The sample is sent to a laboratory and put into a machine for analysis. The FBC test looks for abnormalities in your blood, such as unusually high or low numbers of blood cells.
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['Physical exam. Your doctor may feel areas of your body for lumps that may indicate a tumor. ... ', 'Laboratory tests. Laboratory tests, such as urine and blood tests, may help your doctor identify abnormalities that can be caused by cancer. ... ', 'Imaging tests. ... ', 'Biopsy.']
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It can find smaller amounts of HCG, and can confirm or rule out a pregnancy earlier than a urine test. A blood test can detect pregnancy even before you've missed a period. Pregnancy blood tests are about 99 percent accurate. A blood test is often used to confirm the results of a home pregnancy test.
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A mammogram or ultrasound can provide images of the lump and help your doctor determine if the mass looks suspicious. You might also need a biopsy, which involves removing a small sample from the lump to test for cancer. If you're lactating, a radiologist might have a harder time reading your mammogram.
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The CA-125 blood test measures the amount of a protein called CA-125 in the blood. Many women with ovarian cancer have high levels of CA-125. This test can be useful as a tumor marker to help guide treatment in women known to have ovarian cancer, because a high level often goes down if treatment is working.
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The most common types of blood tests used to assess heart conditions are: Cardiac enzyme tests (including troponin tests) – these help diagnose or exclude a heart attack. Full blood count (FBC) – this measures different types of blood levels and can show, for example, if there is an infection or if you have anaemia.
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Blood tests. No blood test can tell you if you have colon cancer. But your doctor may test your blood for clues about your overall health, such as kidney and liver function tests. Your doctor may also test your blood for a chemical sometimes produced by colon cancers (carcinoembryonic antigen, or CEA).
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A positive test result means that you have a mutation in one of the breast cancer genes, BRCA1 or BRCA2, and therefore a much higher risk of developing breast cancer or ovarian cancer compared with someone who doesn't have the mutation. But a positive result doesn't mean you're certain to develop cancer.
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Cancer: Lung, stomach, breast, and ovarian cancers, as well as lymphoma, can cause high platelet counts. Additional blood testing, imaging scans, or a biopsy can test for cancer. Anemia: People with iron-deficiency or hemolytic anemia may have high platelets. Further blood testing can detect most forms of anemia.
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Cancers that affect the blood and bone marrow can also lower the count. These types of cancers include leukemia, lymphoma, and multiple myeloma. Amounts of different white blood cells. Higher-than-normal numbers of lymphocytes or monocytes can indicate the possibility of certain types of cancers.
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A blood test can provide you with your blood type and Rh factor. Antibody screen is another blood test that can show if an Rh-negative woman has developed antibodies to Rh-positive blood. An injection of Rh immunoglobulin (RhIg), a blood product that can prevent sensitization of an Rh-negative mother.
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The older hemoccult test finds hidden blood in the stool. Its accuracy in detecting cancer varies but can be as high as 70 percent. However, the hemoccult test cannot detect colorectal polyps.