329 results found
Medical tests
… normal, it may be a sign of a poor diet (malnutrition). Your doctor may use the results of this test to make changes in your diet. He or she also may use the results to see how … fluids are working. Other health problems also may cause your levels to drop. You may need another blood test to be …
Medical tests
… each parent. The blood sample for PKU is usually taken from your baby's heel (called a heel stick). The test is done in … to use phenylalanine in their body. If this test shows that your baby has a phenylalanine problem, the doctor will do further testing to check whether your baby has PKU. It's important for your baby to have this …
Medical tests
… undetectable. This means there is very little virus in your blood. Why It Is Done A viral load test is done to watch for changes in an HIV infection. Your doctor uses it to see how well your treatment is working. This information helps guide your …
Medical tests
… This protein measures general levels of inflammation in your body. The hs-CRP can be used to find the risk for heart … may mean a higher-than-normal risk of heart problems. If your risk for heart problems is high, your doctor may recommend lifestyles changes or medicine to …
Medical tests
… It takes pictures of the organs and other structures in your body. It can be used in different areas such as the … blood vessel. It may be used to find the cause of pain in your belly or another part of your body. Or it can be used to look for a cyst, tumour, or …
Medical tests
… Test Overview A tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). This … eye. Tonometry measures IOP by recording the resistance of your cornea to pressure (indentation). Eyedrops to numb the surface of your eye are used with most of the following methods. …
Medical tests
… of the waste product creatinine (say "kree-AT-uh-neen") in your blood and urine. These tests tell how well your kidneys … are working normally. To find out if your kidney disease is changing. To see how well the kidneys work in people who … are working normally. To find out if your kidney disease is changing. To see how well the kidneys work in people who …
Medical tests
… : Blood antibody test. A blood test checks to see whether your body has made antibodies to H. pylori bacteria. If you have antibodies to H. pylori in your blood, it means you either are currently infected or … breath test checks to see if you have H. pylori bacteria in your stomach. This test can show if you have an H. pylori …
Medical tests
… fainted or who often feel light-headed. The results help your doctor know the cause of your fainting or feeling light-headed. The test uses a … that slowly tilts you to an upright position. It checks how your body responds when you change positions. Why It Is Done …
Medical tests
… to measure the thickness of fat at one or more places on your body. It is most accurate when a well-trained person … impedance. A small electrical current is passed through your body to measure your body's electrical resistance. This resistance is used …