305 results found
Medical tests
… measures the amount of this protein that may appear in the blood of some people who have certain kinds of cancers, … stops before birth, and it usually is not present in the blood of healthy adults. Why It Is Done The carcinoembryonic … cancer or cancer that has spread to other parts of the body (metastatic cancer) may have high CEA levels if their …
Medical tests
… out of damaged heart muscle cells, and their levels in the bloodstream rise. The test might also check for an enzyme … some of these proteins and enzymes are also found in other body tissues, their levels in the blood may rise when those other tissues are damaged. Cardiac …
Medical tests
… The high-sensitivity C-reactive protein (hs-CRP) test is a blood test that finds lower levels of C-reactive protein … protein measures general levels of inflammation in your body. The hs-CRP can be used to find the risk for heart … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How long the test takes …
Medical tests
… , or the genetic material ( DNA or RNA ) of HIV in the blood or another type of sample. This can show if an HIV infection is present (HIV-positive). HIV infects white blood cells called CD4+ cells. They are part of the body's immune system that help fight infections. HIV can …
Medical tests
… the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and … then make a hormone called cortisol, which helps your body manage stress. Cortisol is needed for life, so its levels in the blood are closely controlled. When cortisol levels rise, …
Medical tests
… energy. It is present in almost all of the tissues in the body and its levels rise in response to cell damage. LDH levels are measured from a sample of blood taken from a vein. Why It Is Done LDH levels help find … It Is done A health professional uses a needle to take a blood sample, usually from the arm. How long the test takes …
Medical tests
… Information Test Overview An alpha-fetoprotein (AFP) blood test checks the level of AFP in a pregnant woman's blood. AFP is a substance made in the liver of an unborn … baby's intestines or other abdominal organs are outside the body (called an abdominal wall defect or omphalocele). …
Medical tests
… the level of the most important estrogen hormones in a blood or urine sample. It measures estradiol, estriol, and … non-pregnant women. The amount of estradiol in a woman's blood varies throughout her menstrual cycle . After … testicles. Small amounts of estrone are made throughout the body in most tissues, especially fat and muscle. This is the …
Medical tests
… system causes the heart muscle to contract. This pumps blood through the heart to the lungs and the rest of the body. Why It Is Done An EKG is done to: Check the heart's … diseases or conditions are present. These include high blood pressure, high cholesterol, cigarette smoking, …
Medical tests
… send electrical signals. Nerves control the muscles in the body with electrical signals called impulses. These impulses … and how soon to do it. If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it … keep taking it. (These medicines include aspirin and other blood thinners.) Make sure that you understand exactly what …
