329 results found
Medical tests
… Test Overview Lung function tests check to see how well your lungs work. The tests can find lung problems, measure … multiple-breath washout test is done to check people who have cystic fibrosis . For this test, you breathe through a … expiratory flow (PEF) How much air you can quickly exhale when you try your hardest. Lower Maximum voluntary …
Medical tests
… prolactin, which is made by the pituitary gland , in your blood. Pregnant women have high levels of prolactin, … throughout the day. The highest levels occur during sleep and shortly after you wake up. Prolactin levels also … a hard time becoming pregnant ( infertile ). In a man when a pituitary gland problem is suspected. Also, a …
Medical tests
… blood changes during the day and is affected by exercise, sleep, emotional stress, and diet. Too much GH during … 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 …
Medical tests
… is shaped to fit into a woman's vagina . A woman may have both transabdominal and transvaginal ultrasounds to … pelvis. Guide the placement of a needle during a biopsy or when draining the fluid from a cyst or abscess . Check for … To Prepare Wear loose clothes for the pelvic ultrasound. You may need to remove all your clothes below the waist and …
Medical tests
… levels of hCG are made during pregnancy. The home tests have similar results to the pregnancy tests done on urine in … of home pregnancy tests use a test strip or dipstick that you hold in the urine stream or dip into a sample of urine. … wait a specific amount of time before reading the results. When to test Most home pregnancy kits can be used on the …
Medical tests
… the cause of a low calcium or potassium level that is not improving with treatment. Look for changes in magnesium … of life-threatening heart rhythm problems. Measure levels when magnesium is being given for medical treatment. How To … a few minutes. How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might …
Medical tests
… this screening test is positive, it means there is a chance your baby has a birth defect. In that case, your doctor may suggest that you have a diagnostic test, which can show if there is a birth … 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
… hormone in a pregnant woman's blood to see if the baby may have Down syndrome . Inhibin A is made by the placenta … problems or birth defects. Health Tools Health Tools help you make wise health decisions or take action to improve … 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
… or can be injected into a vein. It travels through your body, giving off radiation signals. The camera "sees" … scan, a whole-body thyroid scan, may be done for people who have had thyroid cancer that has been treated. The … given technetium in a vein ( intravenously ) in your arm. When and how you take the radioactive tracer depends on …
Medical tests
… procedure may also be called a "chest tap." It is normal to have a small amount of fluid in the pleural space. But too … of breath and pain caused by the fluid buildup. Or you may have it done so the doctor can test the fluid to … anesthetic in your chest wall so you won't feel any pain when the longer needle that withdraws the fluid is inserted. …
