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24 августа 2021 г. 11:24

What is the platelet count? What...

platelet is abbreviated as pLT, which is a type of cell in the blood. It is called platelet because of its dimpled shape on both sides, oval or disc. platelets are the smallest blood cells, much smaller than red blood cells and white blood cells, with an average diameter of only 2 to 4 microns. It is formed by fragments that are shed from the cytoplasm of bone marrow normal platelet count. When we injured a person or caused a patient’s blood vessel damage through other reasons, a large number of studies on platelets will immediately accumulate in the blood vessel damage, aggregate into clusters, form related thrombi, and block the blood vessel breach. In addition, platelets will also It releases substances that promote vasoconstriction and blood coagulation in China, preventing corporate blood from flowing out of damaged places. The platelet count is the number of platelets in a unit of blood. In normal people, the number of thrombocytopenia in the blood will be maintained at a certain level. Certain diseases can cause the number of platelets to decrease or increase. platelet count helps in the clinical diagnosis and differential diagnosis of hemostasis and thrombotic diseases.

clinical

1. physiological

The platelet count of normal people may change by 6-10% within a day; it is lower in the morning and slightly higher in sequence; lower in spring and higher in winter; lower in plains residents and higher in plateau; venous blood is 10% higher than capillary blood Decrease you before menstruation and increase after menstruation; increase in the middle and late stages of pregnancy and decrease after delivery; increase after exercise and recover after rest.

2. pathological

(1) Reduce resource regenerative anemia, acute leukemia, radiopharmaceutical therapy and chemotherapy, thrombocytopenic purpura, hyperactivity of the spleen, etc.

(2) Elevated myelodysplastic syndrome, chronic myelogenous leukemia, acute infection, acute blood loss, acute hemolysis, and post-splenectomy.

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Автор: Статус: offline huale
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