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Chapter 51

Assisting in the Clinical Laboratory

TermDefinition
Aliquot A portion of a well-mixed sample removed for testing.
Analyte Substance or chemical being analyzed or detected in a specimen.
Anticoagulant Chemical added to a blood sample collection to prevent clotting.
Caustic Capable of burning corroding or damaging tissue by chemical action.
Cytology Study of cells using microscope medicines.
Diluent A liquid used to dilute a specimen or reagent.
Exudates Fluids with high concentration of protein and cellular debris that have escaped from the blood vessels and have been deposited in tissues or on tissue surfaces.
Hemolyzed Term used to describe a blood sample in which the red blood cells have ruptured.
Preservatives Substances added to a specimen to prevent deterioration of cells or chemicals.
Referral Laboratory A private or hospital based laboratory that performs a wide variety of tests many of them specialized physicians often send specimens collected in the office to referral laboratories for testing
Specimen A sample of body fluid waste product or tissue that is collected for analysis
Quantitative Test Provides a number in the reported result.
Electrical fires and mechanical factors Environmental factors that must be controlled for safety.
Longest Objective Oil Immersion (100) Allows the finest focusing of the object.
Iron An important component of the hemoglobin molecule.
Sterile Containers Prevent contamination of the specimen by outside microbes
MSDS Contains basic information about specific chemical/product; includes trade name, chemical name, synonyms, chemical family, manufacturers name/address, emergency phone #, hazard ingredients, physical data, fire/explosion data, health hazard/protection info
Metric System Based on a decimal system in which a combination of basic units and prefixes indicates a system of division in multiple of 100
Scanning Lens Used to scan the field of interest and then to focus on a particular object.
Oil Immersion Used to view extremely small cells and materials such as bacteria and platelets it is also used to examine stained specimens.
Image Focused by moving the objective closer to the specimen and illumination is provided by raising or lowering the condenser.
Microbiology The study of microorganisms that cause disease.
Clinical Laboratory Improvement Amendments (CLIA) Established quality standards for all laboratories testing to ensure the accuracy, reliability and timeliness of Pt. test result.
Waived Tests Do not need a degree to read the result can purchase OTC e.g. blood sugar test/pregnancy test.
Condenser Directs light up through the stage.
Iris Diaphragm Regulates the amount of light passing through the specimen.
Centrifugation Used to separate blood cells from serum, solid materials(e.g. cell/crystals) from urine and solids from liquids.
Incubator Cabinets that maintain constant temperature
Created by: ItsRainbowBre