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A thrombin generation assay (TGA) or thrombin generation test (TGT) is a global coagulation assay (GCA) and type of coagulation test which can be used to assess coagulation and thrombotic risk. [ 1 ] [ 2 ] [ 3 ] It is based on the potential of a plasma to generate thrombin over time, following activation of coagulation via addition of ...
Thermogravimetric analysis or thermal gravimetric analysis (TGA) is a method of thermal analysis in which the mass of a sample is measured over time as the temperature changes. . This measurement provides information about physical phenomena, such as phase transitions, absorption, adsorption and desorption; as well as chemical phenomena including chemisorptions, thermal decomposition, and ...
The calibrated automated thrombogram (CAT or CT) is a thrombin generation assay (TGA) and global coagulation assay (GCA) which can be used as a coagulation test to assess thrombotic risk. [1] [2] It is the most widely used TGA. [3] The CAT is a semi-automated test performed in a 96-well plate and requires specialized technologists to be ...
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.
Thrombodynamics test. Non-homogenous: realization of the three-dimensional model of the clot growth; Use of platelet free plasma; Record of information about the clot formation as a diagram, giving the possibility to calculate the key parameters of the blood coagulation system; New test, not widely accepted; Overall hemostatic potential (OHP)
There are numerous variables that influence the interpretation of drug concentration data: time, route and dose of drug given, time of blood sampling, handling and storage conditions, precision and accuracy of the analytical method, validity of pharmacokinetic models and assumptions, co-medications and, last but not least, clinical status of ...
The cloned enzyme donor immunoassay (CEDIA) involves genetically engineering an enzyme (e.g., beta-galactosidase) into two inactive fragments: a small enzyme donor (ED) conjugated with the drug analog, and a larger enzyme acceptor (EA). When the two fragments associate, the full enzyme converts a substrate into a cleaved colored product.
Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.