329 results found
Medical tests
… partly controls serum osmolality. Water constantly leaves your body as you breathe, sweat, and urinate. If you do not drink enough water, the concentration of chemicals in your blood (serum osmolality) increases. When serum osmolality increases, your body releases ADH. This keeps water from leaving in the …
Medical tests
… These tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology … problems of the retina. A full-field ERG can check how well your entire retina is working. A multifocal ERG (mfERG) … special to prepare for the tests. Follow any instructions your doctor gives you about what to do before your test. For …
Medical tests
… heart, or liver disease and have to limit fluids, talk with your doctor before you increase the amount of fluids you drink. You will take a laxative. Your doctor will give you this to empty your intestines. You may be asked to do a water enema to …
Medical tests
… How To Prepare Do not use mouthwash before you collect your sputum sample. Some types of mouthwash can kill bacteria and could affect your results. If bronchoscopy will be used to collect your sputum sample, your doctor will tell you how soon …
Medical tests
… to take pictures of the salivary glands . This can help your doctor find the cause of dry mouth ( xerostomia ) or … gland scan, the tracer liquid is put into a vein ( IV) in your arm. The tracer moves through your blood and into the salivary glands. A special camera …
Medical tests
… there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done This test is done … waist. And you may drape a paper or cloth covering around your shoulders. Remove all jewellery from your head and around your neck. You will lie on your back on …
Medical tests
… substance called a tracer is injected into a vein in your arm. The tracer travels through your bloodstream and into your bones. Then a special camera takes pictures of the …
Medical tests
… bone problems seen on an X-ray. An open bone biopsy allows your doctor to do surgical treatment at the same time, if needed. How To Prepare Before having a bone biopsy: Tell your doctor ALL the medicines and natural health products … you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should stop …
Medical tests
… the neck that carry blood to the brain. The test may help your doctor decide if a procedure is needed to open a … in a blood vessel leading to the brain. The test may help your doctor decide if a procedure is needed to repair the … day after the test. If you take these medicines, talk with your doctor. An angiogram can be done on an inpatient or …
Medical tests
… test is not usually used to find testicular cancer . If your doctor thinks you may have cancer, you will probably … Prepare If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it before your test. Or your doctor may tell you to keep taking it. …
