Understanding Your Lab Test Results. When you have cancer it often seems like someone is always taking blood for some kind of test. Blood tests are done to help watch your body’s response to treatment. They can show small changes before problems get serious.Last Revised: April 22, 2016. The Oncotype DX lab test is used to determine whether chemotherapy is likely to benefit patients with early-stage breast cancer. It also helps evaluate the likelihood of disease recurrence. This diagnostic test is often performed on a small amount of tissue removed during breast cancer surgery and then examined at a molecular level.
Examples of blood tests used to diagnose cancer include: Complete blood count (CBC). This common blood test measures the amount of various types of blood cells in a sample of your blood. Blood cancers may be detected using this test if too many or too few of a type of blood cell or abnormal cells are found. If you are diagnosed with breast cancer, your doctor may order additional lab tests to assist with prognosis. The two most common lab tests are the hormone receptor test and the HER2/neu test.Results from these tests can provide insight into which cancer treatment options may be most effective for you.
Examples include tests to look for BRCA1 and BRCA2 gene mutations, which play a role in development of breast, ovarian, and other cancers. How it is used: Assessment of cancer risk Complete blood count (CBC) What it measures: Numbers of the different types of blood cells, including red blood cells, white blood cells, and platelets, in a sample. Why might I need a complete blood count?A complete blood count (CBC) is a common blood test that your doctor may recommend for the following reasons:To help diagnose some blood cancers, such as leukemia and lymphomaFind out if cancer has spread to the bone marrowDetermine how a person’s body is handling cancer treatmentTo diagnose other, noncancerous conditionsIf you are.
Breast cancer cells that are negative for HER2 amplification and negative for estrogen and progesterone receptors are called "triple-negative." This type of breast cancer occurs more often in younger women and in women of African or Hispanic descent. Women with BRCA mutations may be predisposed to triple-negative breast cancer. A CBC is usually done in a community lab or hospital. You may be given special instructions to follow before having a CBC done. Some medicines may affect CBC results, so you may be asked to stop taking certain medicines before a CBC. Check with the lab to see if .
Your Complete Blood Count and Breast Cancer Treatment By Pam Stephan. Updated February 13, 2019. More in Breast Cancer Treatment A complete blood count (CBC) is a routine blood test done regularly during treatment for breast cancer. (described in detail later). The results of this test will show how well your vital organs are.