327 results found
Medical tests
… the amount of follicle-stimulating hormone (FSH) in a blood sample. FSH is produced by the pituitary gland . In women, FSH helps control the menstrual cycle and the production of eggs … test takes The test will take a few minutes. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… into a vein in your arm. The tracer travels through your bloodstream and into your bones. Then a special camera takes … bones caused by infection or other conditions, such as Paget's disease. How To Prepare If you are breastfeeding, you … How It Feels You may feel nothing at all from the needle when the tracer is injected, or you may feel a brief sting …
Medical tests
… pyelogram (CT/IVP) is usually done to look for the cause of blood in the urine. Why It Is Done An IVP is done to: … you may want to pump enough breast milk before the test to get through 1 to 2 days of feeding. The contrast material … need to hold are uncomfortable. You will feel a brief sting when the needle is inserted into the vein in your arm. When …
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 … these substances—along with a woman's age and other factors—help the doctor estimate the chance that the baby may have … 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
… of symptoms. It can help explain symptoms such as severe or bloody diarrhea or an increased amount of gas. It can also … Urinate before you collect the stool. That way, you won't get any urine in the stool sample. Do not urinate while you … the stool sample using a cotton swab, you may feel some pressure or discomfort as the swab is inserted into your …
Medical tests
… . A test for DHEA-S checks the level of this hormone in the blood. Testosterone affects sexual features and development. … the tests done to diagnose polycystic ovary syndrome . To help find other conditions, such as: Congenital adrenal … The test is usually done in the morning, because that is when the amount of DHEA-S is at its highest. Women may be …
Medical tests
… Overview A folate test measures the amount of folate in the blood. Folate is one of many B vitamins. The body needs … in foods such as liver; citrus fruits; dark green, leafy vegetables (spinach); whole grains; and beans. Folic acid is … The amount of folate in red blood cells measures the level when the cell was made, as much as 4 months earlier. This …
Medical tests
… tyrosine, the phenylalanine level builds up in the baby's blood and can cause brain damage, seizures, and intellectual … baby has this test. How It Is Done A heel stick is used to get a blood sample from a baby. The baby's heel is poked, … A brief pain, like a sting or a pinch, is usually felt when the lancet punctures the skin. Your baby may feel a …
Medical tests
… checks the level of this male hormone (androgen) in the blood. Testosterone affects sexual features and development. … gland controls the level of testosterone in the body. When the testosterone level is low, the pituitary gland … during puberty. This causes boys to develop a deeper voice, get bigger muscles, make sperm , and get facial and body …
Medical tests
… SPECT picture may be matched with those from a CT scan to get more detailed information about where the tracer is … used to evaluate brain, head, and neck problems; to look at blood flow to the heart; to examine bones; and to diagnose … at least 6 hours before some SPECT scans. Ask your doctor when or if you need to fast before the test. Your doctor …
