Expert in study

Perform the platelet count from given blood sample along with objective, clinical significance, material required, procedure, result and interpretation of result?​

answers: 1
Register to add an answer
The time for answering the question is over
151 cents Jeffrey Moore


Platelets, also called thrombocytes, are tiny fragments of cells that are essential for normal blood clotting. They are formed from very large cells called megakaryocytes in the bone marrow and are released into the blood to circulate. The platelet count is a test that determines the number of platelets in your sample of blood.  

When there is an injury to a blood vessel or tissue and bleeding begins, platelets help stop bleeding in three ways. They:  

  • Adhere to the injury site
  • Clump together (aggregate) with other platelets
  • Release chemical compounds that stimulate aggregation of other platelets

These steps result in the formation of a loose platelet plug at the site of the injury in a process called primary hemostasis. At the same time, activated platelets support the coagulation cascade, a series of steps that involves the sequential activation of proteins called clotting factors. This secondary hemostasis process results in the formation of strands of fibrin that weave through the loose platelet plug, form a fibrin net, and compress to form a stable clot that remains in place until the injury has healed. When the clot is no longer needed, other factors break the clot down and remove it.  

Each component of the clotting process must be present, activated at the right time, and functioning properly for adequate clotting. If there is an insufficient number of platelets or if the platelets are not functioning normally, a stable clot may not form and you may be at an increased risk of excessive bleeding.  

Platelets survive in the circulation about 8 to 10 days, so the bone marrow must continually produce new platelets to replace those that degrade, are used up, and/or are lost through bleeding. Determining the number of platelets in blood with a platelet count can help diagnose a range of disorders having to do with too few or too many platelets

hope it helps

Jeffrey Moore
For answers need to register.
Expert in study
About us
For new users
For new experts
Terms and Conditions