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Platelet Checks: MedlinePlus Medical Check

What are platelet assessments?

Platelets, also called thrombocytes, are small blood cells which are important for blood clotting. Clotting is the method that helps you cease bleeding after an damage. There are two varieties of platelet assessments: a platelet rely take a look at and platelet operate assessments.

A platelet rely take a look at measures the variety of platelets in your blood. A decrease than regular platelet rely is known as thrombocytopenia. This situation could cause you to bleed an excessive amount of after a reduce or different damage that causes bleeding. The next than regular platelet rely is known as thrombocytosis. This will make your blood clot greater than you want it to. Blood clots might be harmful as a result of they’ll block blood stream.

Platelet operate assessments examine your platelets’ skill to type clots. Platelet operate assessments embrace:

  • Closure time. This take a look at measures the time it takes for platelets in a blood pattern to plug a small gap in a tiny tube. It helps display for various platelet issues.
  • Viscoelastometry. This take a look at measures the energy of a blood clot because it kinds. A blood clot must be sturdy to cease bleeding.
  • Platelet aggregometry. It is a group of assessments which are used to measure how effectively platelets clump collectively (combination).
  • Lumiaggregometry. This take a look at measures the quantity of sunshine produced when sure substances are added to a blood pattern. It could assist present if there are defects within the platelets.
  • Circulation cytometry. It is a take a look at that makes use of lasers to search for proteins on the floor of platelets. It could assist diagnose inherited platelet issues. It is a specialised take a look at. It is just accessible at sure hospitals and laboratories.
  • Bleeding time. This take a look at measures the period of time for bleeding to cease after small cuts are made within the forearm. It was as soon as generally used to display for quite a lot of platelet issues. Now, different platelet operate assessments are used extra usually. The newer assessments present extra dependable outcomes.

Different names: platelet rely, thrombocyte rely, platelet operate assessments, platelet operate assay, platelet aggregation research

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