Question

Explain the specimens which is required for platelet aggregation studies and specimens required for the PFA analyzer. Explain how the tests are different

Answer 1

A platelet aggregation test checks how well your platelets clump together to form blood clots. Platelets are a type of blood cell. They help form blood clots by sticking together. A clot is what stops the bleeding when you have a wound. Without platelets, you could bleed to death.

A platelet aggregation test requires a blood sample

It is done in case of

• excessive bleeding
• excessive bruising
• bleeding from the nose or gums
• excessive menstrual bleeding
• blood in the urine or stool
• Auto immune disorder
• Genetic disorder

The platelet aggregation test requires a blood sample

PFA testWhole blood ls taken out and put in bottle of sodium citrate light blue top tubes (require ratio of 9
parts blood to 1 part anticoagulant)

Difference between PFA and platelet aggregation test

PFA is screening test of platelet function that measure platelet adhesion and aggregation