329 results found
Medical tests
… the body. An exercise EKG translates the heart's electrical activity into line tracings on paper. The spikes and dips in … about starting an exercise program if you have been inactive for a number of years and have an increased chance of … through your body during the test. There is no danger of getting an electrical shock. Results Your doctor may be able …
Medical tests
… to the hepatitis A virus. You have a greater chance of being exposed to the virus if you have been to a country … You or your doctor wants to know if you are protected from getting the disease. How To Prepare In general, there's … found. You may need more tests to find out if you have an active infection now or a past infection that got better. …
Medical tests
… rate that speeds up when the baby moves means the baby is getting enough oxygen. Why It Is Done A non-stress test is … done together with a fetal ultrasound. This is called a biophysical profile (BPP). How To Prepare If you smoke, you … to 40 minutes. It depends on how quickly your baby becomes active. After the test Before you leave, your doctor will …
Medical tests
… you wake up. Do it before you eat, drink, or do any other activity. Use a special ovulation thermometer or digital … and sticky. Just before and during ovulation, you will have more cervical mucus. It will be thin, clear, and stringy. It … pain, and mood changes). You may have any of the following physical signs of ovulation: Breast pain An increase in …
Medical tests
… B tests are blood tests that show whether you have an active hepatitis B infection. The tests can also show if you … You may have been exposed to the hepatitis B virus. You are more likely to have been exposed to the virus if you inject … You or your doctor wants to know if you are protected from getting the disease. The tests also are done to help your …
Medical tests
… signals needed for vision. These tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology … response (VER): Follow your doctor's instructions about eating to avoid low blood sugar. Avoid caffeine within 12 …
Medical tests
… (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will be low. Usually a renin activity test is done when the aldosterone level is … pressure or low potassium levels. This is done when overactive adrenal glands or an abnormal adrenal growth are …
Medical tests
… collect information about your heart's electrical activity. Your doctor can tell what kind of heart rhythm … Follow the instructions exactly about when to stop eating and drinking. This may be a few hours before the … is always a slight risk of damage to cells or tissue from being exposed to any radiation, including the low levels …
Medical tests
… Cortisol levels can be affected by many conditions, such as physical or emotional stress, strenuous activity, infection, or injury. Normally, cortisol levels … (diurnal rhythm) in cortisol levels, you may have overactive adrenal glands. This condition is called Cushing's …
Medical tests
… How To Prepare You may be asked to avoid any sexual activity that results in ejaculation for 2 to 5 days before … A long time without sexual activity may result in less active sperm. You may be asked to avoid drinking alcohol for … by keeping the semen container in an inside pocket. Avoid getting the semen hot or cold. If you'd prefer to collect …
