329 results found
Medical tests
… tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology includes … vision. Like ERG, this test measures electrical activity when the eye responds to looking at something. A VER test … from side to side (at the same angle). Total examination time is about 40 to 45 minutes. Visual evoked response (VER) …
Medical tests
… work. Potassium levels often change with sodium levels. When sodium levels go up, potassium levels go down, and when … But if your potassium levels get low, it can take some time for your body to start holding on to potassium. In the … Check to see whether certain cancer treatments are causing too many cells to be destroyed (cell lysis). Cell …
Medical tests
… blockage of bile ducts. Why It Is Done Liver tests are done when a medical history or physical examination suggests that … with antiviral therapy, you may have liver tests from time to time to see whether treatment is working. How To … blockage of bile ducts. Why It Is Done Liver tests are done when a medical history or physical examination suggests that …
Medical tests
… It can be done as early as the 5th week of pregnancy. Sometimes the sex of your fetus can be seen by about the 18th … feeling of pressure in your bladder. The gel may feel cool when it is first put on your belly. You will feel a light pressure when the transducer is passed over your belly. Normally a …
Medical tests
… your test results to adjust your dose. You may need testing when you take medicines such as: Cyclosporine and … you take, your doctor may schedule your test at a certain time of day. For example, you may have your test in the … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… electrical activity of your heart on paper. The EKG records when your heart is in the resting stage, which is the best time for the CT scans to be taken. During the test, you will … a long time. Risks The chance of a coronary calcium scan causing a problem is small. There is a risk of damage to cells …
Medical tests
… for calcium and creatinine levels may be done at the same time as a phosphate urine test. Why It Is Done A test to … must collect all the urine you produce in a 24-hour period. When you first get up in the morning, urinate into the … must collect all the urine you produce in a 24-hour period. When you first get up in the morning, urinate into the …
Medical tests
… to serious problems. They may lead to cervical cancer over time if they're not treated. There are many types of HPV. … How It Feels You may feel some pressure or mild discomfort when the speculum is placed in your vagina. You may also feel some pressure when the sample of cervical cells is being collected. Risks …
Medical tests
… sphincter . This may cause reflux. Weak muscle contractions when you swallow. This could slow the rate at which food or … before the test. Follow your doctor's instructions for using other medicines before the test. Do not drink alcohol … in your pocket or wear it around your waist for a certain time period. You will need to use a diary to keep track of …
Medical tests
… you take, your doctor may schedule your test at a certain time of day. For example, your test may be done right before … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all … is very little chance of having a problem from this test. When a blood sample is taken, a small bruise may form at the …
