329 results found
Medical tests
… problems or birth defects. Health Tools Health Tools help you make wise health decisions or take action to improve … birth defects (especially Down syndrome ) during pregnancy. When the test for estriol is done with hormone inhibin A, … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… CT scans may also be used. A prostate biopsy may be done: When a blood test shows a high level of prostate-specific … To monitor the growth of prostate cancer for someone on active surveillance. Why It Is Done You may need a prostate … under a microscope and how likely those cells are to grow quickly and spread. Your doctor will discuss this with you. …
Medical tests
… challenge test, spirometry is done before and after you exercise on a treadmill or an exercise bicycle. Spirometry measures how much and how quickly you can breathe air in and out. An exercise … a diagnosis of asthma. Document that asthma is present when the diagnosis is unclear based on medical history, …
Medical tests
… It Feels Risks Results Test Overview Your pulse is the rate at which your heart beats. Your pulse … Your pulse changes from minute to minute. It will be faster when you exercise, have a fever, or are under stress. It … to treat asthma. Fever. Some types of heart disease. An overactive thyroid gland ( hyperthyroidism ). Stimulants such as …
Medical tests
… Overview Tympanometry tests the movement of the eardrum when an ear infection or other middle ear problem is … information helps doctors decide what kind of treatment your child may need. Results Normally the eardrum moves easily when pressure in the ear canal is changed. Most of the time, …
Medical tests
… One of these is insulin -like growth factor 1 (IGF-1). When the GH level is very high, the IGF-1 level is also very … growth hormone. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … It Is Done Blood levels of growth hormone (GH) can change quickly, so more than one blood sample may be taken on …
Medical tests
… During a scan to look at kidney function, a radioactive tracer substance is injected into a vein in the arm … . Find growths in the kidneys (rare). How To Prepare If you are breastfeeding, you may want to pump enough breast … Feels You may feel nothing at all from the needle puncture when the tracer is injected, or you may feel a brief sting …
Medical tests
… Test Overview A tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). This … usually goes away in 24 hours. Some people become anxious when the tonometer needs to be touched to the eye. In … usually goes away in 24 hours. Some people become anxious when the tonometer needs to be touched to the eye. In …
Medical tests
… Catecholamine levels in the blood can change quickly, so it may be hard to find high values in a single … measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to … 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
… are needed to change galactose into glucose, a sugar that your body uses for energy. A person with galactosemia … so high levels of galactose build up in the blood or urine. When galactose builds up in a baby's blood, it can cause … is removed. How It Feels Blood sample from a heel stick A quick sting or a pinch is usually felt when the lancet …
