266 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 … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When a …
Medical tests
… number of chromosomes . It also can reveal the sex and blood type of the fetus. This is a blood test for the mother. The test can be done as early as … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When a …
Medical tests
… A dye is injected into your arm. It flows through your blood to the blood vessels in your eye. The dye makes the blood vessels in your eye easier to see as your doctor looks …
Medical tests
… be done using other types of samples, such as spinal fluid, blood, urine, or tears. Blood testing can be done to find out if you have been … Antibody test A health professional uses a needle to take a blood sample, usually from an arm. Rapid tests are available …
Medical tests
… test detects antibodies to the Lyme disease bacteria in the blood. Lyme disease bacteria are spread by certain kinds of … becoming infected before antibodies can be detected in a blood test. Once formed, antibodies usually stay in your … gotten better with antibiotic treatment. The PCR test is a blood or urine test, but can also be done on fluid from the …
Medical tests
… test measures the amount of the hormone progesterone in a blood sample. Progesterone is a female hormone produced by … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. For a woman who is … menstrual cycle or who can't get pregnant, more than one blood sample may be needed to help find the problem. A …
Medical tests
… Test Overview This test is done by measuring blood pressure at the ankle and in the arm while a person is … Some people also do an exercise test. In this case, the blood pressure measurements are repeated at both sites after … ankle-brachial index is 1.0 to 1.4. This means that your blood pressure at your ankle is the same or greater than the …
Medical tests
… enzyme also can be found in smaller amounts in the brain. A blood test to check the level of CK can show if there has … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all from the …
Medical tests
… tiny positively charged particles (positrons). The camera records the positrons and turns the recording into pictures on a computer. PET scan pictures do … located. A PET scan is often used to evaluate cancer, check blood flow, or see how organs are working. Why It Is Done …
Medical tests
… into a vein in the arm and then travels through the bloodstream to the kidneys. The tracer flows through the … the movement of the tracer through the kidneys and recording it on a graph. A series of chart recordings is then made based on the amount of tracer uptake …
