Platelet transfusion refers to the process of transferring platelets to a patient with low levels of platelets. Platelets are crucial blood components that help in clotting and preventing bleeding. Synonyms for platelet transfusion include platelet infusion, platelet replacement therapy, and platelet transferral. Other terms used in medical contexts include thrombocytopheresis, which is the process of removing platelets from a donor's blood and transfusing them into the patient. Plateletpheresis is similar to thrombocytopheresis, but involves taking platelets from a single donor and transfusing them to multiple patients. Lastly, platelet concentrate is a term used to refer to the platelet component extracted from a unit of whole blood in the laboratory.