is t spot a blood test?
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The T-SPOT. TB assay is a blood test for M tuberculosis infection that is based on measurement of a cell-mediated immune response.
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High levels of AST in the blood may indicate hepatitis, cirrhosis, mononucleosis, or other liver diseases. High AST levels can also indicate heart problems or pancreatitis.
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If you have a positive skin or blood TB test, your doctor may give you a chest X-ray. They'll look for spots on your lungs or any changes caused by TB. You may also take something called a sputum smear or culture test. Your doctor will take a sample of the mucus that comes up when you cough and test it for TB bacteria.
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A blood test can check for the defective form of hemoglobin that underlies sickle cell anemia. In the United States, this blood test is part of routine newborn screening. But older children and adults can be tested, too. In adults, a blood sample is drawn from a vein in the arm.
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Blood tests will likely be part of the initial workup if your doctor suspects you might have MS. Blood tests can't currently result in a firm diagnosis of MS, but they can rule out other conditions. These conditions include: Lyme disease.
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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.
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The GP may recommend that you have a repeat blood test every so often to see whether you eventually develop an underactive thyroid. Blood tests are also sometimes used for other measurements, such as checking the level of a hormone called triiodothyronine (T3). However, this is not routinely offered.
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A partial thromboplastin time (PTT) test is a blood test that helps doctors assess your body's ability to form blood clots. Bleeding triggers a series of reactions known as the coagulation cascade.
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A total iron-binding capacity (TIBC) test measures the blood's ability to attach itself to iron and transport it around the body. A transferrin test is similar. If you have iron deficiency (a lack of iron in your blood), your iron level will be low but your TIBC will be high.
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TSH > 4.0/mU/L with a low T4 level indicates hypothyroidism. If your TSH is > 4.0 mU/L and your T4 level is normal, this may prompt your physician to test your serum anti-thyroid peroxidase (anti-TPO) antibodies.
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A full blood count (or FBC) is a blood test which mesures a large number of blood parameters, most notably the Haemoglobin (blood count), white cell count (WCC) and Platelet count.
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Specifically, blood tests can help doctors: Evaluate how well organs—such as the kidneys, liver, thyroid, and heart—are working. Diagnose diseases and conditions such as cancer, HIV/AIDS, diabetes, anemia (uh-NEE-me-eh), and coronary heart disease. Find out whether you have risk factors for heart disease.
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A troponin test measures the levels of troponin T or troponin I proteins in the blood. These proteins are released when the heart muscle has been damaged, such as occurs with a heart attack. The more damage there is to the heart, the greater the amount of troponin T and I there will be in the blood.
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There is very little risk to having a TB skin test or blood test. For a TB skin test, you may feel a pinch when you get the injection. For a blood test, you may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly.
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The total serum protein test measures all the proteins in your blood. It can also check the amount of albumin you have compared to globulin, or what's called your “A/G ratio.”
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What Are Blood Tests? Blood tests help doctors check for certain diseases and conditions. They also help check the function of your organs and show how well treatments are working. Specifically, blood tests can help doctors: Evaluate how well organs—such as the kidneys, liver, thyroid, and heart—are working.
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Diagnosis. A blood test can check for the defective form of hemoglobin that underlies sickle cell anemia. In the United States, this blood test is part of routine newborn screening. But older children and adults can be tested, too. In adults, a blood sample is drawn from a vein in the arm.