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The PFA-100 (Platelet Function Assay [1] or Platelet Function Analyser [2]) is a platelet function analyser that aspirates blood in vitro from a blood specimen into disposable test cartridges through a microscopic aperture cut into a biologically active membrane at the end of a capillary.
The term template bleeding time is used when the test is performed to standardized parameters. A newer alternative to the traditional bleeding time test is the platelet function screen performed on the PFA-100 analyzer. [1]
The PFA-100 (Platelet Function Assay — 100) is a system for analysing platelet function in which citrated whole blood is aspirated through a disposable cartridge containing an aperture within a membrane coated with either collagen and epinephrine or collagen and ADP. These agonists induce platelet adhesion, activation and aggregation, leading ...
Platelet-activating factor, also known as PAF, PAF-acether or AGEPC (acetyl-glyceryl-ether-phosphorylcholine), is a potent phospholipid activator and mediator of many leukocyte functions, platelet aggregation and degranulation, inflammation, and anaphylaxis.
The ristocetin-induced platelet aggregation (RIPA) is an ex vivo assay for live platelet function. It measures platelet aggregation with the help of von Willebrand factor (vWF) and exogenous antibiotic ristocetin added in a graded fashion. [1]
Numerous medical tests are used to assess the function of the coagulation system: [3] [46] Common: aPTT, PT (also used to determine INR), fibrinogen testing (often by the Clauss fibrinogen assay), [47] platelet count, platelet function testing (often by PFA-100), thrombodynamics test.
A number of studies have linked red wine consumption with heart health benefits, including reduced LDL (known as “bad”) cholesterol levels, better blood pressure and blood vessel function and ...
Light transmission aggregometry is widely accepted as the gold standard diagnostic tool for assessing platelet function, and a result of absent aggregation with any agonist except ristocetin is highly specific for Glanzmann's thrombasthenia. [9] Following is a table comparing its result with other platelet aggregation disorders: