281 results found
Medical tests
… in heart tissue and other muscles. It is released into the blood after damage to the heart or other muscles. Damage can … Collect the urine in the container. After the urine has flowed for several seconds, place the collection container in … (2 fl oz) of this "midstream" urine without stopping the flow. Don't touch the rim of the container to your genital …
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures the … and travels throughout your body and to your brain. This allows blood alcohol levels to increase quickly. The amount of … meter shows your BAC in a digital display window after you blow into a mouthpiece attached to the meter. This type of …
Medical tests
… develop ulcers. Four tests are used to detect H. pylori : Blood antibody test. A blood test checks to see whether your … of time before having a breath test or a stomach biopsy. Follow your doctor's instructions about how long you need to … Urea breath test A breath sample is collected when you blow into a balloon or blow bubbles into a bottle of liquid. …
Medical tests
… Overview A complement test uses a blood sample to detect a group of proteins that help the … substances in the body, such as bacteria or viruses, a low level of complement means the body is trying to get rid … substances (as in autoimmune diseases such as lupus ), a low level of complement may mean that the body is attacking …
Medical tests
… who has syphilis during pregnancy. Testing is done on blood, body fluid, or tissue samples. If a first screening … a thin needle is inserted into the spinal canal in the lower back. After the needle is in place, a small amount of … a thin needle is inserted into the spinal canal in the lower back. After the needle is in place, a small amount of …
Medical tests
… or trisomy 18 . First-trimester screening tests include: Blood tests. These measure the level of two substances in … means that you have a negative result and your baby has a lower chance of a birth defect. But it doesn't guarantee … means that you have a negative result and your baby has a lower chance of a birth defect. But it doesn't guarantee …
Medical tests
… and how soon to do it. If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it … need to take off all or most of your clothes (you may be allowed to keep on your underwear if it does not interfere … Normal: A small amount of clear, colourless, or pale yellow pleural fluid, usually less than 20 mL (0.7 fl oz) , is …
Medical tests
… tissue from the body. A karyotype test usually is done on a blood sample taken from a vein. For testing during … be done on a sample of amniotic fluid or the placenta . Blood sample from a vein A health professional uses a needle to take a blood sample, usually from an arm. Cell sample from a fetus …
Medical tests
… Overview A cardiac perfusion scan measures the amount of blood in your heart muscle at rest and after it has been … moves through the heart muscle, areas that have good blood flow absorb the tracer. Areas that do not absorb tracer may … how serious it is. These scans may also be done following surgery to correct a congenital heart defect. How To …
Medical tests
… tissue or make the cells produce thyroid hormones. They are blood tests. Antibodies that destroy thyroid tissue can lead … These tests are not thyroid hormone tests. High or low levels of thyroid hormones also can be signs of thyroid … after thyroid hormone tests to find the cause of high or low levels of thyroid hormones. High levels of these …
