329 results found
Medical tests
… (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will … How To Prepare An aldosterone test is often done at the time of a routine blood test. You don't need to do anything … tests. If you are having follow-up aldosterone blood tests, your doctor may give you the following instructions: Eat …
Medical tests
… (PTH) regulates the levels of calcium and phosphorus in your blood. When the phosphorus level is measured, a vitamin D level, and sometimes a PTH level, is measured at the same time. Vitamin D is needed for your body to take in phosphate. The relation between calcium …
Medical tests
… and leafy green vegetables. The body needs more iron at times of growth (such as during adolescence), for pregnancy, … Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to keep the right amount of iron in your blood is working. How To Prepare Do not eat or drink …
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 …
Medical tests
… a test that measures and records the electrical activity of your brain. Special sensors called electrodes are attached to your head. They're hooked by wires to a computer. The … a window during the test. The recording may be stopped from time to time. This allows you to stretch and change your …
Medical tests
… For an MRI test, you are placed inside the machine so that your shoulder is inside the strong magnetic field. MRI can … The contrast material may be put in a vein ( IV ) in your arm or directly into your shoulder joint. Why It Is … You may be asked to hold your breath for short periods of time. During the test, you may be alone in the scanner room. …
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 … during the test. You will stare straight ahead, or sometimes look down. Your doctor gently touches the tonometer …
Medical tests
… Test Overview Cardiac catheterization is a test to check your heart. This test uses a thin, flexible tube called a … present and how severe it is. Cardiac catheterization sometimes can also be used to help correct the defect. Check on … exactly about when to stop eating and drinking. If your doctor told you to take your medicines on the day of …
Medical tests
… if the tracer is evenly spread in the gland. This helps your doctor know if the thyroid gland is working properly. … who have had thyroid cancer surgery. How To Prepare Tell your doctor if you: Take any medicines regularly. Be sure … to lie still with your head tipped backward. Risks Anytime you're exposed to radiation, there's a small chance of …
Medical tests
… . A vaginal self-examination may help you better understand your body, the changes that take place during the menstrual … and any problems that may need medical attention. The best time to do a vaginal self-examination is between your menstrual periods. A vaginal self-examination should …
