Q: How long does it take to peak platelet count after its transfusion?
Answer: About 10 minutes to an hour
It takes about 10 to 60 minutes after a platelet transfusion to have its peak value. Transfused platelets usually survive in the blood for about three days in contrast to bone marrow produced platelets which have a half-life of about ten days.
A transfusion of one apheresis platelet, which is an equivalent to six units of pooled platelets approximately increase platelet count by 30,000/microL in an average adult.
1. Slichter SJ. Platelet transfusion therapy. Hematol Oncol Clin North Am 2007; 21:697.
2. McCullough J. Overview of platelet transfusion. Semin Hematol 2010; 47:235.