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2. Platelet - Wikipedia

   en.wikipedia.org/wiki/Platelet

   For example, in patients undergoing surgery, a level below 50×10 9 /L is associated with abnormal surgical bleeding, and regional anaesthetic procedures such as epidurals are avoided for levels below 80×10 9 /L. [68] Platelets may also be transfused when the platelet count is normal but the platelets are dysfunctional, such as when an ...

3. Plateletpheresis - Wikipedia

   en.wikipedia.org/wiki/Plateletpheresis

   In a typical set of rules, a platelet donor must weigh at least 50 kg (110 lb) and have a platelet count of at least 150 x 10 9 /L (150,000 platelets per mm³). [2] One unit has greater than 3×10 11 platelets. Therefore, it takes 2 liters of blood having a platelet count of 150,000/mm³ to produce one unit of platelets.

4. Thrombocytopenia - Wikipedia

   en.wikipedia.org/wiki/Thrombocytopenia

   One common definition of thrombocytopenia requiring emergency treatment is a platelet count below 50,000/μL. [5] Thrombocytopenia can be contrasted with the conditions associated with an abnormally high level of platelets in the blood – thrombocythemia (when the cause is unknown), and thrombocytosis (when the cause is known). [6] [7]

5. Platelet transfusion - Wikipedia

   en.wikipedia.org/wiki/Platelet_transfusion

   Preventive transfusion is often done in those with platelet levels of less than 10 x 10 9 /L. [2] In those who are bleeding transfusion is usually carried out at less than 50 x 10 9 /L. [2] Blood group matching (ABO, RhD) is typically recommended before platelets are given. [2]

6. Thromboregulation - Wikipedia

   en.wikipedia.org/wiki/Thromboregulation

   Thromboregulation is the series of mechanisms in how a primary clot is regulated. These mechanisms include, competitive inhibition or negative feedback. It includes primary hemostasis, which is the process of how blood platelets adhere to the endothelium of an injured blood vessel.

7. Bleeding time - Wikipedia

   en.wikipedia.org/wiki/Bleeding_time

   The time from when the incision is made until all bleeding has stopped is measured and is called the bleeding time. Every 30 seconds, filter paper or a paper towel is used to draw off the blood. The test is finished when bleeding has stopped. [6] A prolonged bleeding time may be a result from decreased number of thrombocytes or impaired blood ...