329 results found
Medical tests
… (LH) Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … out why you can't get pregnant (infertility). LH testing is often used to help evaluate problems with sperm count. Help …
Medical tests
… Hormone Tests On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … disease is working. The free thyroxine (FT4) value is often used to keep track of treatment for hyperthyroidism …
Medical tests
… Ketone Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results … such as nausea, vomiting, or abdominal pain. These symptoms often happen with high blood sugar and may mean you have … (isopropanol). Have not eaten (fasted) for 18 hours or longer. Are pregnant. Some women have low levels of ketones …
Medical tests
… Skin Biopsy On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … and then examined under a microscope. Skin biopsies most often are done to diagnose skin cancer , which may be …
Medical tests
… On this page: Test Overview Health Tools Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … body, such as the eyes and the brain. HSV tests are most often done for sores on the genitals. If blisters or sores …
Medical tests
… Sickle Cell Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … cell trait or have the disease. Sickled red blood cells often cause recurring health problems called sickle cell …
Medical tests
… Lyme Disease Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … and can confirm the results of an ELISA test. It is most often done to detect a chronic Lyme disease infection. …
Medical tests
… Screening for Birth Defects On this page: Test Overview How It Is Done Results Test … screening, or the combined screening. The screening tests show the chance of your baby having certain birth defects … that your baby has Down syndrome or trisomy 18. Doctors often use a certain number as a cutoff for a positive …
Medical tests
… in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … important in how nerves and muscles work. Potassium levels often change with sodium levels. When sodium levels go up, …
Medical tests
… On this page: Test Overview Health Tools Why It Is Done How To Prepare How It Is Done How It Feels Risks Results … to a very low but constant level. Estriol levels are most often measured only during pregnancy. Estriol is produced in … estriol, or uE3). The levels of these substances—along with a woman's age and other factors—help the doctor …
