294 results found
Medical tests
… . A test for DHEA-S checks the level of this hormone in the blood. Testosterone affects sexual features and development. … except water for 9 to 12 hours before you have your blood drawn. In most cases, you are allowed to take your … 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
… pictures of structures more clearly. The dye may help show blood flow, look for some types of tumours, and show areas … Look for the cause of headaches. Help diagnose a stroke or blood vessel problems in the head. Problems with blood vessels may include an aneurysm or abnormal twisted …
Medical tests
… When you feel stressed, these hormones increase heart rate, blood pressure, breathing rate, muscle strength, and mental alertness. They also lower the amount of blood that goes to the skin and intestines. They increase blood going to the major organs, such as the brain, heart, …
Medical tests
… symptoms are caused by problems with your heart rate or blood pressure. How To Prepare You may be asked to not eat … How It Is Done The test is usually done in a hospital or a cardiologist's office. You will have small patches or pads … are sensors that monitor your heart. You will also have a blood pressure cuff on your arm. And you may have an IV. …
Medical tests
… (ALT) test measures the amount of this enzyme in the blood. ALT is found mainly in the liver, but also in smaller … or diseased. Low levels of ALT are normally found in the blood. But when the liver is damaged or diseased, it releases ALT into the bloodstream, which makes ALT levels go up. Most increases in …
Medical tests
… is used to find problems such as tumours, bleeding, injury, blood vessel diseases, or infection. MRI also may be done to … the chest can look at the heart, the valves, and coronary blood vessels . It can show if the heart or lungs are … of the chest may also be used to look for breast cancer. Blood vessels. Using MRI to look at blood vessels and the …
Medical tests
… your urine. It also checks your levels of protein, sugar, blood cells, or other substances in your urine. A urine test … material, minerals, fluids, and other substances from the blood to be passed in the urine. Urine has hundreds of … kidney stones, a urinary tract infection (UTI), high blood pressure, or some kidney or liver diseases. As part of …
Medical tests
… (ALP) test measures the amount of the enzyme ALP in the blood. ALP is made mostly in the liver and in bone with some … bones. Some conditions cause large amounts of ALP in the blood. These conditions include rapid bone growth (during … bones), a disease that affects how much calcium is in the blood ( hyperparathyroidism ), vitamin D deficiency, or …
Medical tests
… you may have celiac disease, he or she will order a simple blood test that looks for these antibodies. Why It Is Done A … 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
… Test Overview A tissue type test is a blood test that identifies substances called antigens on the … antigen pattern for donated tissue or organs (including a blood platelet transfusion or bone marrow transplant) is a … your doctor tells you to. If you are donating tissue or blood cells, your doctor may want to talk about your medical …
