284 results found
Medical tests
… to measure the amount of this hormone in a pregnant woman's blood to see if the baby may have Down syndrome . Inhibin A … for Birth Defects? How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… is most often used to find a pulmonary embolism . This is a blood clot that prevents normal blood flow in the lung. Two … on your nose and a tube in your mouth that you use for breathing. You will take a deep breath and hold it. The camera … The scans can be done on their own. How It Feels Breathing through the mask during the ventilation scan may be …
Medical tests
… the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and … may be tested in the morning or evening if your doctor thinks that they are abnormal. Cortisol levels are often … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… Test Overview A C-reactive protein (CRP) test is a blood test that measures the amount of a protein called … (infection of a bone). How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… Results Test Overview A CD4+ count is a blood test to see how well the immune system is working in … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your … to: Check to see if you have heart failure. A doctor may think that you have heart failure if you are having problems such as trouble breathing or swelling in your legs. Find out how severe heart …
Medical tests
… measures the amount of human growth hormone (GH) in the blood. GH is made by the pituitary gland and is needed for … uses growth hormone. How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… measures the amount of prostate-specific antigen in the blood. PSA is released into the blood by the prostate , … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick … discuss your test results with your doctor. A PSA level within the normal ranges does not mean that prostate cancer is …
Medical tests
… sodium and potassium levels in the body. This helps control blood pressure and the balance of fluids and electrolytes in … paper, pubic hair, stool (feces), menstrual blood, or anything else in your urine sample. How It Feels This test … paper, pubic hair, stool (feces), menstrual blood, or anything else in your urine sample. How It Feels This test …
Medical tests
… Test Overview Cholesterol and triglyceride tests are blood tests that measure lipids—fats and fatty substances … these tests. Your doctor may ask you to not eat or drink anything except water for 9 to 14 hours before your blood test. … Your doctor uses your cholesterol levels plus other things to calculate your risk. These include: Your blood …
