329 results found
Medical tests
… the CT scanner, which is a large doughnut-shaped machine. Your head will be positioned inside the scanner. The CT … of a stroke. Find the cause of a loss of consciousness or a changing level of consciousness. Check on the success of … of a stroke. Find the cause of a loss of consciousness or a changing level of consciousness. Check on the success of …
Medical tests
… for 1 to 2 weeks before you have the test. Be sure to tell your doctor about all the non-prescription and prescription medicines you take. Be sure to tell your doctor if you have: Recently had an X-ray test using … if you have travelled outside the country. This helps your doctor look for the parasites, fungi, viruses, or …
Medical tests
… For an MRI test, you are placed inside the machine so that your knee is inside the strong magnetic field. MRI can find … The contrast material may be put in a vein ( IV ) in your arm or directly into your knee. There are two main types of MRI—the standard MRI …
Medical tests
… the genitals, which are the penis, scrotum, and testicles. Your doctor will feel the organs and check them for lumps, … do anything special to prepare for an examination done by your doctor. But for comfort, you may want to empty your bladder ahead of time. You will be asked to undress and …
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
… 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
… there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done You will need to … is usually taken from the front, back, top, and sides of your head. Hold your head completely still while the pictures are being …
