281 results found
Medical tests
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material … viral load. This means that the amount of the virus is too low for the test to detect. When the virus is undetectable, … blood. It means that the amount of HIV in the blood was too low for the test to detect. CD4+ Cells …
Medical tests
… Results Test Overview A CD4+ count is a blood test to see how well the immune system is working in … CD4+ counts generally decrease as HIV progresses. A low CD4+ count usually means a weakened immune system and a … HIV, the CD4+ count almost always goes up with treatment. Low CD4+ counts make infections more likely. Related …
Medical tests
… measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the … you if and when you need to stop taking any of the following medicines that can change the RAIU test results: … so small that your chance of an allergic reaction is very low. Have ever had a serious allergic reaction ( anaphylaxis …
Medical tests
… Test Overview A cold agglutinins blood test is done to check for conditions that cause the … cause red blood cells to clump together (agglutinate) at low temperatures. Healthy people generally have low levels of cold agglutinins in their blood. But lymphoma …
Medical tests
… the image. Angiogram. A dye is injected into your arm. It flows through your blood to the blood vessels in your eye. The dye makes the … is working. You may need retinal imaging if: You have diabetes or diabetic retinopathy . These conditions can lead …
Medical tests
… Test Overview A sickle cell test is a blood test done to check for sickle cell trait or sickle … can get trapped in blood vessels and reduce or block blood flow. This can damage organs, muscles, and bones and may lead … can get trapped in blood vessels and reduce or block blood flow. This can damage organs, muscles, and bones and may lead …
Medical tests
… This test measures the amount of lead in a person's blood. Lead is a poisonous (toxic) metal that can damage the … and other parts of the body. A lead test may be done on blood taken from the vein, a finger (finger stick), or the … you are using any natural health products. How It Is Done Blood sample from a heel stick A heel stick is used to get a …
Medical tests
… pericardium . It protects the heart and parts of the major blood vessels connected to the heart. Normally, there is a … (such as bacteria, fungi , or viruses), white blood cells , sugar (glucose), cancer cells, and other substances. … Then a long, thin needle will be carefully inserted just below your breastbone. (In some cases, the needle is inserted …
Medical tests
… Test Overview Mononucleosis tests are blood tests to look for antibodies that indicate … It Is Done The rapid mono test is done on a small sample of blood taken from your fingertip or from a vein. The Epstein-Barr antibody test is done on a blood sample taken from your vein. Blood test from a finger …
Medical tests
… ( colon ) and the rectum . Stool tests look for signs of blood or cancer in a stool sample. Stool tests include: … provide instructions. To get accurate results, carefully follow the instructions in your kit. Since colorectal cancers … days before you take the test. When the test is done, follow the instructions to return the test. Some tests provide …
