327 results found
Medical tests
… Monitor heart function during surgery. Look for masses or blood clots in the upper left chamber (left atrium) of the … at which blood travels through the heart. Measure the blood pressure and speed of blood flow through the heart valves. … procedure Follow your doctor's instructions exactly about when to stop eating and drinking before the test. This may …
Medical tests
… and how soon to do it. If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it … area. If you have a core needle biopsy, you may feel some pressure when the biopsy needle is put in. You may have … to the sentinel lymph node. The lymph node has normal numbers of lymph node cells. The structure of the lymph node …
Medical tests
… errors, such as nearsightedness or farsightedness , occur when light rays entering the eye can't focus exactly on the … stroke, head injury, or other condition that causes reduced blood flow to the brain. Colour vision tests These tests may … using an eye chart. Each eye's score is expressed as two numbers, such as 20/20 (6/6) or 20/100 (6/30). The first …
Medical tests
… for several reasons. It may be used to look for a blocked blood vessel. It may be used to find the cause of pain in … being looked at, you may get special instructions such as when you can eat or drink. How It Is Done This test is done … when it is first put on your skin. And you may feel light pressure from the transducer as it passes over the area …
Medical tests
… Get a tissue sample for more testing (biopsy). Measure the pressure inside the bile ducts (manometry). How To Prepare … and how soon to do it. If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it … along. The scope is no thicker than many foods you swallow. When the scope is in your esophagus, your head will be …
Medical tests
… Test Overview Mononucleosis tests are blood tests to look for antibodies that indicate … test. This can detect different types of antibodies to help determine whether you were infected recently or … has been recent. EBV antibody testing is usually done when you have symptoms of infectious mononucleosis and a …
Medical tests
… This test measures the amount of lead in a person's blood. Lead is a poisonous (toxic) metal that can damage the … Done Blood sample from a heel stick 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
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material … ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed with HIV infection. This first … to see how well your treatment is working. This information helps guide your treatment options. A goal of treatment is …
Medical tests
… Test Overview A toxoplasmosis test is a blood test that checks for antibodies to the Toxoplasma … system, such as someone who has HIV , has a chance of getting a toxoplasmosis infection. How To Prepare In … 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
… Test Overview Thyroid testing Thyroid hormone tests are blood tests that check how well the thyroid gland is … If you are taking thyroid medicines, tell your doctor when you took your last dose. You may need to stop taking … usually from the arm. Heel stick A heel stick is used to get a blood sample from a baby. The baby's heel is poked, …
