aids in the evaluation of bleeding disorders by measuring the rate and degree to which platelets form a clump (aggregate) after the addition of a chemical that stimulates clumping (aggregation).
Platelets are disk-shaped blood cells that are also called thrombocytes. They play a major role in the blood-clotting process. The platelet aggregation test is a measure of platelet function.
A chemical that is added to the blood sample in the platelet aggregation test to stimulate the clumping process.
Platelet Count
The platelet aggregation test uses a machine called an aggregometer to measure the cloudiness (turbidity) of blood plasma
There are many medications that can affect the results of the platelet aggregation test. The patient should discontinue as many as possible beforehand.
aspirin decrease platelet aggregation
Carbon monoxide inhibit blood platelet aggregation.
An aminochromone is an amino derivative of a chromone, some of which block human platelet aggregation.
What is the Platelet Count Test?
Risks for this test are minimal in normal individuals. Patients with bleeding disorders, however, may have prolonged bleeding from the puncture wound or the formation of a bruise (hematoma) under the skin where the blood was withdrawn.
drugs that can decrease platelet aggregation include aspirin, some antibiotics, beta blockers, dextran (Macrodex), alcohol, heparin (Lipo-Hepin), nonsteroidal anti-inflammatory drugs (NSAIDs), tricyclic antidepressants, and warfarin
Platelet aggregation is the medical term for the process in which platelets stick together.
haemorrhage prevented by platelet aggregation and agglutination (clotting) and vasoconstriction to maintain blood pressure/perfusion pressure. formation of clot through platelet clumping and binding with protein fibrin.