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A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or via fingerprick. Multiple tests for specific blood components, such as a glucose test or a cholesterol test, are often grouped together into one test panel called a blood panel or blood work.
A complete blood count ( CBC ), also known as a full blood count ( FBC ), is a set of medical laboratory tests that provide information about the cells in a person's blood. The CBC indicates the counts of white blood cells, red blood cells and platelets, the concentration of hemoglobin, and the hematocrit (the volume percentage of red blood ...
Drug test. MeSH. D015813. A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva —to determine the presence or absence of specified parent drugs or their metabolites. Major applications of drug testing include detection of ...
Serum (blood) Preparation of serum cups for a lipids panel designed to test cholesterol levels in a patient's blood. Serum ( / ˈsɪərəm /) is the fluid and solvent component of blood which does not play a role in clotting. [ 1] It may be defined as blood plasma without the clotting factors, or as blood with all cells and clotting factors ...
A blood culture is a medical laboratory test used to detect bacteria or fungi in a person's blood. Under normal conditions, the blood does not contain microorganisms: their presence can indicate a bloodstream infection such as bacteremia or fungemia, which in severe cases may result in sepsis. By culturing the blood, microbes can be identified ...
On July 29, 2024, the Food and Drug Administration (FDA) approved a blood test that can help with primary colorectal cancer screening. The test is Guardant Health’s Shield blood test, and the ...
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