329 results found
Medical tests
… nerves and muscles work. Most of the sodium in the body (about 85%) is found in blood and lymph fluid . Sodium levels … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done Urine sodium can be … Your doctor will give you a large container that holds about 4 L (1 gal) . You will use the container to collect …
Medical tests
… to make magnified images, or pictures, of the back of your eye . This includes the retina. It's the part of the … will use drops to widen, or dilate, your pupils, think about having someone else drive you home. The drops make … to widen, or dilate, your pupils . You'll sit and wait for about half an hour for the drops to take effect. For most …
Medical tests
… colonography . Which screening test you choose depends on your risk, your preference, and your doctor. Talk to your doctor about what puts you at risk and what test is best for you. … To Prepare With the gFOBT, you will be given instructions about foods to avoid in the days before the test. Some …
Medical tests
… 24 hours. Uric acid is made from the natural breakdown of your body's cells. It's also made from the foods you eat. … the results of this test. Be sure to tell your doctor about all the over-the-counter and prescription medicines … will usually provide you with a large container that holds about 4 L (1 gal) . The container has a small amount of …
Medical tests
… of cells from the surface of the cervix is collected by your doctor. The sample is then spread on a slide (Pap … and on things that increase your risk. Talk to your doctor about how often to have this test. Cervical cancer is often … of the human papillomavirus (HPV) . Talk to your doctor about getting the HPV shots to prevent infection with the …
Medical tests
… has on urine flow or to monitor the effect of treatment. Your doctor and studies about treatment for BPH may talk about this test as "peak urine flow rate." Many treatments …
Medical tests
… Overview A dilated eye examination lets your eye doctor see the back of your eye ( retina ). It's … use eyedrops to numb the surface of your eyes. It takes about 15 to 20 minutes to fully dilate the pupils. When your … use eyedrops to numb the surface of your eyes. It takes about 15 to 20 minutes to fully dilate the pupils. When your …
Medical tests
… of thyroid tissue can be taken by: Fine-needle biopsy. Your doctor puts a thin needle through the skin and into the … a needle with a special tip and removes a sample of tissue about the size of a grain of rice. Open biopsy. Your doctor … during an open biopsy. Follow the instructions exactly about when to stop eating and drinking. If you don't, your …
Medical tests
… or a urine test. Levels in the blood will increase within about 3 hours after the damage. Myoglobin can be found in … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done Blood test A health … place the collection container in the stream. Collect about 60 mL (2 fl oz) of this "midstream" urine without …
Medical tests
… get one if a test shows that you have blood or protein in your urine. The biopsy is usually done by putting a long, … will take 15 to 30 minutes. The whole procedure will take about an hour. After the procedure, you'll stay in the … kidney isn't working well. Find out more information about a tumour found in the kidney. How To Prepare …
