329 results found
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A throat culture is a test to find germs (such as bacteria or a fungus ) that can cause an infection. A sample of cells from the back of your … as wide as you can. Your doctor will press your tongue down with a flat stick (tongue depressor) and then examine …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A testosterone test checks the level … certain inherited diseases (such as Klinefelter syndrome or Down syndrome), liver disease (cirrhosis), or treatment for cancer of the prostate gland. Long-term (chronic) alcohol use can cause a low testosterone level. In women, a …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A chemistry screen is a blood test … eat high-fat foods the night before the test. Do not drink alcohol before you have this test. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A cortisol test is done to measure … day before a cortisol test. You may also be asked to lie down and relax for 30 minutes before the blood test. Some … can affect cortisol levels for some time even after you stop taking the medicine. How It Is Done A health …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview A test for catecholamines measures … norepinephrine (noradrenaline), and dopamine. They break down into vanillylmandelic acid (VMA), metanephrine, and … 4 hours before the blood test. Your doctor may ask you to stop certain medicines, such as blood pressure medicines, …
Medical tests
… Nicotine Tests On this page: Related Information A nicotine test measures the level … by testing a sample of your blood or urine. The test is used to see if you smoke or use other forms of tobacco. All … you are using quit-smoking aids and not tobacco. When you stop using nicotine, it can take more than 2 weeks for the …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview An aldosterone test measures the … and prescription medicines you take. You may be asked to stop taking some medicines for 2 weeks before the test. … changes depending on whether you are standing up or lying down. If your results show a problem, repeat tests may be …
Medical tests
… On this page: Overview Why It Is Done Results Related Information Overview Tympanocentesis is the removal of fluid from behind the eardrum. The doctor uses a special needle with a tube attached to collect the … Sometimes no bacteria are found in the fluid. Related Information Ear Infections Current as of: March 1, …
Medical tests
… Prepare How It Is Done How It Feels Risks Results Related Information Test Overview Fetal ultrasound is a test done during pregnancy that uses reflected sound waves. It produces a picture of the … in the first trimester to look for birth defects, such as Down syndrome . The first-trimester screening test uses …
Medical tests
… Overview Blood and urine are often tested to find the cause of health problems. But other body fluids also can be … to find out why the fluid is building up around the heart. Reasons can include infection, chest trauma, heart failure, … Medicine & Martin J. Gabica MD - Family Medicine This information does not replace the advice of a doctor. …
